# Lab Grown Diamonds — company-by-company sector analysis

> Lab Grown Diamonds: Renaissance Global Ltd owns the largest revenue base AND the fastest current growth.

Sector Alpha — machine-written from the numbers. Data as of 2026-07-29. Not investment advice.

## Bottom line

Lab Grown Diamonds has outperformed NIFTY 500 by 3.7% over 52 weeks and 2.1% over 13 weeks. 2 of 3 covered companies beat NIFTY on Mansfield relative strength, while 0 of 3 beat the sector itself. Renaissance Global Ltd leads with revenue of ₹2,812 crore, based on 3 of 3 comparable companies through Mar 2026.

### Is the Lab Grown Diamonds sector outperforming NIFTY 500?

Lab Grown Diamonds has outperformed NIFTY 500 by 3.7% over 52 weeks and 2.1% over 13 weeks. 2 of 3 covered companies beat NIFTY on Mansfield relative strength, while 0 of 3 beat the sector itself.

### Which Lab Grown Diamonds company is largest by revenue?

Renaissance Global Ltd leads with revenue of ₹2,812 crore, based on 3 of 3 comparable companies through Mar 2026.

### Which Lab Grown Diamonds company is growing fastest?

Renaissance Global Ltd has the fastest current revenue growth at 35.1%, across 3 of 3 comparable companies.

### Which Lab Grown Diamonds company has the strongest 4-Factor Sector Score?

Goldiam International Ltd ranks first at 60.6/100 with 92.6% evidence confidence. The score prioritizes research; it is not a buy recommendation.

### Which Lab Grown Diamonds company has the least gross debt?

Goldiam International Ltd has the lowest comparable gross debt at ₹77 crore. Renaissance Global Ltd has the highest at ₹641 crore.

### Which Lab Grown Diamonds company has the lowest comparable PEG?

Goldiam International Ltd has the lowest comparable Guarded PEG at 0.38, among 1 of 3 companies that pass the metric’s comparability rules.

### How much history does this Lab Grown Diamonds comparison include?

The page compares up to 20 reported quarters per company for fundamentals, CAPEX, debt and valuation, ending Jun 2026. Missing observations remain blank rather than being estimated.

### How is the 4-Factor Sector Score calculated?

The four visible contributions add directly: growth and earnings up to 35 points, capital efficiency up to 25, valuation up to 20, and relative strength up to 20. Missing or stale evidence moves only the affected contribution toward neutral.

## Sector relative strength

Lab Grown Diamonds has outperformed NIFTY 500 by 3.7% over the last 52 weeks. Over 13 weeks the gap is a lead of 2.1%. 2 of 3 covered companies currently beat NIFTY on Mansfield relative strength, so leadership inside the sector is selective. Renaissance Global Ltd is the strongest against the sector itself at -2.3%. Readings are as of 2026-07-19.

13-week sector return versus NIFTY 500: 2.1%
52-week sector return versus NIFTY 500: 3.7%
Stocks leading NIFTY: 2/3
Stocks leading sector: 0/3

Central tension: The central tension: current leadership is concentrated, so durability matters more than rank.

Companies: 3
Combined market value: ₹21.1K Cr

## 4-Factor Sector Score

An additive sector-relative research score. The four displayed point contributions always equal the total: Growth & earnings (35), Capital efficiency (25), Valuation (20), and Relative strength (20). Missing or stale evidence is absorbed inside the affected factor, never applied as a hidden adjustment.

1. Goldiam International Ltd (GOLDIAM): 61/100 — Mixed-positive evidence; evidence 93%
   - Growth & earnings 22.5/35 | Capital efficiency 20.8/25 | Valuation 12.3/20 | Relative strength 5.0/20
   - Exact sum: 22.5 + 20.8 + 12.3 + 5 = 60.6
   - Decision use: Balanced evidence: keep at normal research priority and require another comparable period before raising conviction.
2. International Gemological Institute Limited (IGIL): 58/100 — Mixed-positive evidence; evidence 73%
   - Growth & earnings 22.6/35 | Capital efficiency 22.2/25 | Valuation 10.0/20 | Relative strength 3.2/20
   - Exact sum: 22.6 + 22.2 + 10 + 3.2 = 58
   - Decision use: Balanced evidence: keep at normal research priority and require another comparable period before raising conviction.
3. Renaissance Global Ltd (RGL): 54/100 — Mixed-positive evidence; evidence 74%
   - Growth & earnings 25.0/35 | Capital efficiency 9.9/25 | Valuation 9.3/20 | Relative strength 9.6/20
   - Exact sum: 25 + 9.9 + 9.3 + 9.6 = 53.8
   - Decision use: Balanced evidence: keep at normal research priority and require another comparable period before raising conviction.

## Revenue Scale & Growth Durability

What the numbers say: Renaissance Global Ltd is the scale leader at ₹2,812 crore, 106.2% ahead of International Gemological Institute Limited. Renaissance Global Ltd's growth is 35.1% from a ₹2,812 crore base, with 15 reported observations in the 20-quarter window. Treat the growth leader as an acceleration candidate, not as equally proven scale.

Investor read: Renaissance Global Ltd is the scale benchmark; Renaissance Global Ltd is the acceleration watch. Promote the challenger only if growth persists and converts into margin and returns.

This conclusion weakens if: Renaissance Global Ltd's growth falls below Renaissance Global Ltd's for two consecutive comparable reports while operating margin also compresses.

Evidence: Renaissance Global Ltd · ₹2,812 crore | 106.2% versus #2 · International Gemological Institute Limited | 5/8 recent comparable periods | 3/3 companies · 45 observations

Definition: Revenue is compared on a common reported-currency basis. Growth is year-on-year, so seasonality does not masquerade as progress.

### Revenue — largest
1. Renaissance Global Ltd (RGL): ₹2.8K Cr
2. International Gemological Institute Limited (IGIL): ₹1.4K Cr
3. Goldiam International Ltd (GOLDIAM): ₹978 Cr

### Revenue growth — fastest growers
1. Renaissance Global Ltd (RGL): 35%
2. Goldiam International Ltd (GOLDIAM): 25%
3. International Gemological Institute Limited (IGIL): 22%

### 20-quarter Revenue history
- IGIL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 — | Dec 2023 ₹250 Cr | Mar 2024 ₹278 Cr | Jun 2024 ₹260 Cr | Sep 2024 ₹250 Cr | Dec 2024 ₹265 Cr | Mar 2025 ₹305 Cr | Jun 2025 ₹301 Cr | Sep 2025 ₹304 Cr | Dec 2025 ₹320 Cr | Mar 2026 ₹369 Cr | Jun 2026 ₹371 Cr
- GOLDIAM: Sep 2021 ₹175 Cr | Dec 2021 ₹218 Cr | Mar 2022 ₹156 Cr | Jun 2022 ₹135 Cr | Sep 2022 ₹85 Cr | Dec 2022 ₹178 Cr | Mar 2023 ₹135 Cr | Jun 2023 ₹120 Cr | Sep 2023 ₹133 Cr | Dec 2023 ₹202 Cr | Mar 2024 ₹148 Cr | Jun 2024 ₹166 Cr | Sep 2024 ₹137 Cr | Dec 2024 ₹280 Cr | Mar 2025 ₹199 Cr | Jun 2025 ₹230 Cr | Sep 2025 ₹193 Cr | Dec 2025 ₹320 Cr | Mar 2026 ₹235 Cr | Jun 2026 —
- RGL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 ₹440 Cr | Dec 2022 ₹724 Cr | Mar 2023 ₹499 Cr | Jun 2023 ₹473 Cr | Sep 2023 ₹442 Cr | Dec 2023 ₹655 Cr | Mar 2024 ₹537 Cr | Jun 2024 ₹445 Cr | Sep 2024 ₹412 Cr | Dec 2024 ₹710 Cr | Mar 2025 ₹514 Cr | Jun 2025 ₹530 Cr | Sep 2025 ₹546 Cr | Dec 2025 ₹963 Cr | Mar 2026 ₹773 Cr | Jun 2026 —

### 20-quarter Revenue growth history
- IGIL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 — | Dec 2023 — | Mar 2024 — | Jun 2024 — | Sep 2024 — | Dec 2024 6.0% | Mar 2025 9.7% | Jun 2025 16% | Sep 2025 22% | Dec 2025 21% | Mar 2026 21% | Jun 2026 23%
- GOLDIAM: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 -13% | Sep 2022 -51% | Dec 2022 -18% | Mar 2023 -13% | Jun 2023 -11% | Sep 2023 56% | Dec 2023 13% | Mar 2024 9.6% | Jun 2024 38% | Sep 2024 3.0% | Dec 2024 39% | Mar 2025 34% | Jun 2025 39% | Sep 2025 41% | Dec 2025 14% | Mar 2026 18% | Jun 2026 —
- RGL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 0.5% | Dec 2023 -9.5% | Mar 2024 7.6% | Jun 2024 -5.9% | Sep 2024 -6.8% | Dec 2024 8.4% | Mar 2025 -4.3% | Jun 2025 19% | Sep 2025 33% | Dec 2025 36% | Mar 2026 50% | Jun 2026 —

## Operating Economics & Margin Trend

What the numbers say: International Gemological Institute Limited leads both opm at 60% and margin change at +2 percentage points.

Investor read: International Gemological Institute Limited sets the level benchmark; use the change leader as an inflection watch only after another comparable report confirms it.

This conclusion weakens if: The next two comparable reports reverse the current margin change signal.

Evidence: International Gemological Institute Limited · 60% | 185.7% versus #2 · Goldiam International Ltd | 5/7 recent comparable periods | 3/3 companies · 49 observations

Definition: Operating margin compares operating profit with revenue. Improvement is measured in percentage points, not percentage growth.

### OPM — highest
1. International Gemological Institute Limited (IGIL): 60%
2. Goldiam International Ltd (GOLDIAM): 21%
3. Renaissance Global Ltd (RGL): 7.0%

### Margin change — fastest expanders
1. International Gemological Institute Limited (IGIL): +2.0 pp
2. Goldiam International Ltd (GOLDIAM): +1.0 pp
3. Renaissance Global Ltd (RGL): 0.0 pp

### 20-quarter OPM history
- IGIL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 — | Dec 2023 51% | Mar 2024 62% | Jun 2024 49% | Sep 2024 59% | Dec 2024 57% | Mar 2025 64% | Jun 2025 58% | Sep 2025 58% | Dec 2025 60% | Mar 2026 64% | Jun 2026 60%
- GOLDIAM: Sep 2021 13% | Dec 2021 23% | Mar 2022 18% | Jun 2022 19% | Sep 2022 27% | Dec 2022 18% | Mar 2023 17% | Jun 2023 19% | Sep 2023 21% | Dec 2023 20% | Mar 2024 16% | Jun 2024 18% | Sep 2024 22% | Dec 2024 22% | Mar 2025 20% | Jun 2025 18% | Sep 2025 20% | Dec 2025 24% | Mar 2026 21% | Jun 2026 —
- RGL: Sep 2021 11% | Dec 2021 8.7% | Mar 2022 5.6% | Jun 2022 7.1% | Sep 2022 8.0% | Dec 2022 7.0% | Mar 2023 7.0% | Jun 2023 7.0% | Sep 2023 7.0% | Dec 2023 8.0% | Mar 2024 8.0% | Jun 2024 8.0% | Sep 2024 8.0% | Dec 2024 7.0% | Mar 2025 7.0% | Jun 2025 7.0% | Sep 2025 7.0% | Dec 2025 6.0% | Mar 2026 7.0% | Jun 2026 —

### 20-quarter Margin change history
- IGIL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 — | Dec 2023 — | Mar 2024 — | Jun 2024 — | Sep 2024 — | Dec 2024 +6.0 pp | Mar 2025 +2.0 pp | Jun 2025 +9.0 pp | Sep 2025 −1.0 pp | Dec 2025 +3.0 pp | Mar 2026 0.0 pp | Jun 2026 +2.0 pp
- GOLDIAM: Sep 2021 −3.4 pp | Dec 2021 −1.5 pp | Mar 2022 +1.8 pp | Jun 2022 −0.3 pp | Sep 2022 +13.4 pp | Dec 2022 −5.5 pp | Mar 2023 −1.1 pp | Jun 2023 −0.2 pp | Sep 2023 −5.5 pp | Dec 2023 +2.0 pp | Mar 2024 −1.0 pp | Jun 2024 −1.0 pp | Sep 2024 +1.0 pp | Dec 2024 +2.0 pp | Mar 2025 +4.0 pp | Jun 2025 0.0 pp | Sep 2025 −2.0 pp | Dec 2025 +2.0 pp | Mar 2026 +1.0 pp | Jun 2026 —
- RGL: Sep 2021 +5.1 pp | Dec 2021 +2.4 pp | Mar 2022 +0.0 pp | Jun 2022 −0.6 pp | Sep 2022 −3.1 pp | Dec 2022 −1.7 pp | Mar 2023 +1.4 pp | Jun 2023 −0.1 pp | Sep 2023 −1.0 pp | Dec 2023 +1.0 pp | Mar 2024 +1.0 pp | Jun 2024 +1.0 pp | Sep 2024 +1.0 pp | Dec 2024 −1.0 pp | Mar 2025 −1.0 pp | Jun 2025 −1.0 pp | Sep 2025 −1.0 pp | Dec 2025 −1.0 pp | Mar 2026 0.0 pp | Jun 2026 —

## Profit Scale & Acceleration

What the numbers say: International Gemological Institute Limited leads with ₹611 crore of TTM profit, 259.4% above Goldiam International Ltd. Goldiam International Ltd shows 45.3% growth from a ₹170 crore profit base. Compare the size of the base and persistence before ranking acceleration above profit scale.

Investor read: International Gemological Institute Limited sets the level benchmark; use the change leader as an inflection watch only after another comparable report confirms it.

This conclusion weakens if: The next two comparable reports reverse the current profit growth signal.

Evidence: International Gemological Institute Limited · ₹611 crore | 259.4% versus #2 · Goldiam International Ltd | 7/7 recent comparable periods | 3/3 companies · 45 observations

Definition: Net profit is the residual after operating costs, interest and tax. Growth off a loss or near-zero base is excluded from the fastest-grower rank.

### Net profit — largest
1. International Gemological Institute Limited (IGIL): ₹611 Cr
2. Goldiam International Ltd (GOLDIAM): ₹170 Cr
3. Renaissance Global Ltd (RGL): ₹90 Cr

### Profit growth — fastest growers
1. Goldiam International Ltd (GOLDIAM): 45%
2. International Gemological Institute Limited (IGIL): 24%
3. Renaissance Global Ltd (RGL): 23%

### 20-quarter Net profit history
- IGIL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 — | Dec 2023 ₹78 Cr | Mar 2024 ₹126 Cr | Jun 2024 ₹78 Cr | Sep 2024 ₹110 Cr | Dec 2024 ₹114 Cr | Mar 2025 ₹141 Cr | Jun 2025 ₹127 Cr | Sep 2025 ₹130 Cr | Dec 2025 ₹135 Cr | Mar 2026 ₹180 Cr | Jun 2026 ₹166 Cr
- GOLDIAM: Sep 2021 ₹20 Cr | Dec 2021 ₹40 Cr | Mar 2022 ₹23 Cr | Jun 2022 ₹21 Cr | Sep 2022 ₹19 Cr | Dec 2022 ₹29 Cr | Mar 2023 ₹16 Cr | Jun 2023 ₹17 Cr | Sep 2023 ₹23 Cr | Dec 2023 ₹32 Cr | Mar 2024 ₹18 Cr | Jun 2024 ₹22 Cr | Sep 2024 ₹22 Cr | Dec 2024 ₹50 Cr | Mar 2025 ₹23 Cr | Jun 2025 ₹34 Cr | Sep 2025 ₹31 Cr | Dec 2025 ₹68 Cr | Mar 2026 ₹37 Cr | Jun 2026 —
- RGL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 ₹16 Cr | Dec 2022 ₹28 Cr | Mar 2023 ₹20 Cr | Jun 2023 ₹14 Cr | Sep 2023 ₹10 Cr | Dec 2023 ₹28 Cr | Mar 2024 ₹21 Cr | Jun 2024 ₹15 Cr | Sep 2024 ₹11 Cr | Dec 2024 ₹24 Cr | Mar 2025 ₹23 Cr | Jun 2025 ₹7 Cr | Sep 2025 ₹20 Cr | Dec 2025 ₹33 Cr | Mar 2026 ₹30 Cr | Jun 2026 —

### 20-quarter Profit growth history
- IGIL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 — | Dec 2023 — | Mar 2024 — | Jun 2024 — | Sep 2024 — | Dec 2024 46% | Mar 2025 12% | Jun 2025 63% | Sep 2025 18% | Dec 2025 18% | Mar 2026 28% | Jun 2026 31%
- GOLDIAM: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 -13% | Sep 2022 -5.0% | Dec 2022 -28% | Mar 2023 -30% | Jun 2023 -19% | Sep 2023 21% | Dec 2023 10% | Mar 2024 13% | Jun 2024 29% | Sep 2024 -4.4% | Dec 2024 56% | Mar 2025 28% | Jun 2025 55% | Sep 2025 41% | Dec 2025 36% | Mar 2026 61% | Jun 2026 —
- RGL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 -38% | Dec 2023 0.0% | Mar 2024 5.0% | Jun 2024 7.1% | Sep 2024 10% | Dec 2024 -14% | Mar 2025 9.5% | Jun 2025 -53% | Sep 2025 82% | Dec 2025 38% | Mar 2026 30% | Jun 2026 —

## Capacity Spending & Returns On It

What the numbers say: There is not enough comparable evidence to name a reliable capex leader.

Investor read: Use the CAPEX rank as a diligence queue. Verify commissioning, utilization, cash conversion and post-investment ROCE before treating spend as value creation.

This conclusion weakens if: CAPEX rises without higher utilization, operating cash flow or incremental returns.

Evidence: No comparable leader | Not enough peers | Not enough history | 0/3 companies · 0 observations

Definition: CAPEX is cash spent on property, plant, equipment and other reported capital assets. CAPEX intensity divides that spend by revenue; high intensity is a reinvestment signal, not proof that the reinvestment will earn attractive returns.

### CAPEX — largest spenders

### CAPEX intensity — highest reinvestment intensity

### 20-quarter CAPEX history

### 20-quarter CAPEX intensity history

## Debt Load & Balance-Sheet Headroom

What the numbers say: Goldiam International Ltd has the clearest covered balance-sheet capacity with ₹402 crore net cash and gross debt of ₹77 crore. Absolute debt alone does not identify the strongest balance sheet because company scale differs; net debt and debt-to-equity carry more information.

Investor read: Prioritize net-cash capacity and leverage relative to operating scale, not the smallest absolute rupee debt.

This conclusion weakens if: Net debt rises faster than revenue and profit for two consecutive reported periods.

Evidence: Goldiam International Ltd · ₹77 crore | 46.2% versus #2 · International Gemological Institute Limited | 8/8 recent comparable periods | 3/3 companies · 43 observations

Definition: Gross debt shows contractual borrowings. Net debt subtracts reported cash; a negative value means net cash. Lower debt can create capacity, but should be read against the scale and capital intensity of the business.

### Gross debt — lowest gross debt
1. Goldiam International Ltd (GOLDIAM): ₹77 Cr
2. International Gemological Institute Limited (IGIL): ₹143 Cr
3. Renaissance Global Ltd (RGL): ₹641 Cr

### Net debt — lowest net debt
1. Goldiam International Ltd (GOLDIAM): ₹-402 Cr
2. Renaissance Global Ltd (RGL): ₹438 Cr

### 20-quarter Gross debt history
- IGIL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 ₹27 Cr | Mar 2023 — | Jun 2023 — | Sep 2023 — | Dec 2023 ₹31 Cr | Mar 2024 — | Jun 2024 — | Sep 2024 — | Dec 2024 ₹145 Cr | Mar 2025 — | Jun 2025 ₹132 Cr | Sep 2025 — | Dec 2025 ₹143 Cr | Mar 2026 — | Jun 2026 —
- GOLDIAM: Sep 2021 ₹58 Cr | Dec 2021 ₹58 Cr | Mar 2022 ₹4 Cr | Jun 2022 ₹4 Cr | Sep 2022 ₹11 Cr | Dec 2022 ₹11 Cr | Mar 2023 ₹3 Cr | Jun 2023 ₹3 Cr | Sep 2023 ₹3 Cr | Dec 2023 ₹3 Cr | Mar 2024 ₹5 Cr | Jun 2024 ₹5 Cr | Sep 2024 ₹5 Cr | Dec 2024 ₹5 Cr | Mar 2025 ₹27 Cr | Jun 2025 ₹27 Cr | Sep 2025 ₹24 Cr | Dec 2025 ₹24 Cr | Mar 2026 ₹77 Cr | Jun 2026 —
- RGL: Sep 2021 ₹698 Cr | Dec 2021 ₹595 Cr | Mar 2022 ₹706 Cr | Jun 2022 ₹776 Cr | Sep 2022 ₹795 Cr | Dec 2022 ₹728 Cr | Mar 2023 ₹611 Cr | Jun 2023 ₹612 Cr | Sep 2023 ₹665 Cr | Dec 2023 ₹665 Cr | Mar 2024 ₹655 Cr | Jun 2024 ₹655 Cr | Sep 2024 ₹717 Cr | Dec 2024 ₹717 Cr | Mar 2025 ₹661 Cr | Jun 2025 ₹661 Cr | Sep 2025 ₹713 Cr | Dec 2025 ₹712 Cr | Mar 2026 ₹641 Cr | Jun 2026 —

### 20-quarter Net debt history
- GOLDIAM: Sep 2021 ₹-155 Cr | Dec 2021 ₹-155 Cr | Mar 2022 ₹-200 Cr | Jun 2022 ₹-201 Cr | Sep 2022 ₹-142 Cr | Dec 2022 ₹-142 Cr | Mar 2023 ₹-234 Cr | Jun 2023 ₹-235 Cr | Sep 2023 ₹-259 Cr | Dec 2023 ₹-259 Cr | Mar 2024 ₹-302 Cr | Jun 2024 ₹-302 Cr | Sep 2024 ₹-266 Cr | Dec 2024 ₹-266 Cr | Mar 2025 ₹-256 Cr | Jun 2025 ₹-256 Cr | Sep 2025 ₹-430 Cr | Dec 2025 ₹-430 Cr | Mar 2026 ₹-402 Cr | Jun 2026 —
- RGL: Sep 2021 ₹495 Cr | Dec 2021 ₹309 Cr | Mar 2022 ₹518 Cr | Jun 2022 ₹518 Cr | Sep 2022 ₹608 Cr | Dec 2022 ₹502 Cr | Mar 2023 ₹373 Cr | Jun 2023 ₹373 Cr | Sep 2023 ₹461 Cr | Dec 2023 ₹461 Cr | Mar 2024 ₹468 Cr | Jun 2024 ₹467 Cr | Sep 2024 ₹473 Cr | Dec 2024 ₹473 Cr | Mar 2025 ₹436 Cr | Jun 2025 ₹419 Cr | Sep 2025 ₹496 Cr | Dec 2025 ₹496 Cr | Mar 2026 ₹438 Cr | Jun 2026 —

## Return On Capital Employed

What the numbers say: International Gemological Institute Limited leads ROCE at 68%, 44.1 percentage points above Goldiam International Ltd. Renaissance Global Ltd has the strongest latest improvement at +2.2 percentage points. Read the leader beside the density of its reported history: a sparse high return is a candidate; a repeated high return is evidence of durability.

Investor read: International Gemological Institute Limited sets the level benchmark; use the change leader as an inflection watch only after another comparable report confirms it.

This conclusion weakens if: The next two comparable reports reverse the current roce change signal.

Evidence: International Gemological Institute Limited · 68% | 184.5% versus #2 · Goldiam International Ltd | Not enough history | 3/3 companies · 33 observations

Definition: ROCE asks how much operating return the business earns on the capital employed. Direction matters, but a single exceptional year should not be mistaken for durability.

### ROCE — highest
1. International Gemological Institute Limited (IGIL): 68%
2. Goldiam International Ltd (GOLDIAM): 24%
3. Renaissance Global Ltd (RGL): 8.0%

### ROCE change — fastest improvers
1. Renaissance Global Ltd (RGL): +2.2 pp
2. Goldiam International Ltd (GOLDIAM): −4.1 pp
3. International Gemological Institute Limited (IGIL): −14.0 pp

### 20-quarter ROCE history
- GOLDIAM: Sep 2021 24% | Dec 2021 — | Mar 2022 27% | Jun 2022 — | Sep 2022 23% | Dec 2022 — | Mar 2023 16% | Jun 2023 — | Sep 2023 17% | Dec 2023 20% | Mar 2024 17% | Jun 2024 21% | Sep 2024 18% | Dec 2024 25% | Mar 2025 21% | Jun 2025 26% | Sep 2025 17% | Dec 2025 26% | Mar 2026 16% | Jun 2026 —
- RGL: Sep 2021 12% | Dec 2021 13% | Mar 2022 13% | Jun 2022 — | Sep 2022 13% | Dec 2022 12% | Mar 2023 13% | Jun 2023 11% | Sep 2023 13% | Dec 2023 11% | Mar 2024 11% | Jun 2024 11% | Sep 2024 10% | Dec 2024 11% | Mar 2025 8.9% | Jun 2025 8.7% | Sep 2025 9.6% | Dec 2025 9.5% | Mar 2026 11% | Jun 2026 —

### 20-quarter ROCE change history
- GOLDIAM: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 −0.9 pp | Dec 2022 — | Mar 2023 −10.8 pp | Jun 2023 — | Sep 2023 −5.9 pp | Dec 2023 — | Mar 2024 +1.0 pp | Jun 2024 — | Sep 2024 +1.3 pp | Dec 2024 +4.9 pp | Mar 2025 +3.1 pp | Jun 2025 +5.0 pp | Sep 2025 −1.3 pp | Dec 2025 +0.4 pp | Mar 2026 −4.1 pp | Jun 2026 —
- RGL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 +0.9 pp | Dec 2022 −0.7 pp | Mar 2023 +0.5 pp | Jun 2023 — | Sep 2023 −0.4 pp | Dec 2023 −1.3 pp | Mar 2024 −2.9 pp | Jun 2024 −0.3 pp | Sep 2024 −2.6 pp | Dec 2024 +0.3 pp | Mar 2025 −1.6 pp | Jun 2025 −2.3 pp | Sep 2025 −0.4 pp | Dec 2025 −1.5 pp | Mar 2026 +2.2 pp | Jun 2026 —

## Valuation Against Growth & Quality

What the numbers say: Goldiam International Ltd has the lowest comparable Guarded PEG at 0.38×. Only 1 of 3 companies pass the guard, so no broad “cheapest stock” conclusion is defensible unless the current multiple, own-history position and growth durability agree.

Investor read: Treat valuation as permission to investigate, never as a standalone reason to buy.

This conclusion weakens if: The next two comparable reports reverse the current p/e signal.

Evidence: Goldiam International Ltd · 0.38× | Not enough peers | 0/8 recent comparable periods | 1/3 companies · 11 observations

Definition: PEG is shown only when earnings are positive and three-year EPS growth is between 5% and 60%. It is recomputed consistently as the trailing P/E divided by that growth rate — reported earnings, never an expected-earnings multiple. On Indian companies it is shown only where the two data sources reconciled. A missing PEG is more honest than a low-base fiction.

### Guarded PEG — lowest PEG
1. Goldiam International Ltd (GOLDIAM): 0.4

### P/E — lowest P/E
1. Renaissance Global Ltd (RGL): 12.7
2. International Gemological Institute Limited (IGIL): 24.0
3. Goldiam International Ltd (GOLDIAM): 30.8

### 20-quarter Guarded PEG history
- GOLDIAM: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 0.3 | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 — | Dec 2023 1.5 | Mar 2024 1.3 | Jun 2024 2.0 | Sep 2024 1.9 | Dec 2024 3.7 | Mar 2025 1.2 | Jun 2025 1.1 | Sep 2025 0.9 | Dec 2025 0.6 | Mar 2026 0.4 | Jun 2026 —

### 20-quarter P/E history
- IGIL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 — | Dec 2023 — | Mar 2024 — | Jun 2024 — | Sep 2024 — | Dec 2024 — | Mar 2025 — | Jun 2025 35.1 | Sep 2025 30.0 | Dec 2025 28.3 | Mar 2026 26.0 | Jun 2026 27.2
- GOLDIAM: Sep 2021 28.3 | Dec 2021 22.8 | Mar 2022 18.9 | Jun 2022 13.9 | Sep 2022 13.2 | Dec 2022 14.4 | Mar 2023 15.4 | Jun 2023 16.8 | Sep 2023 17.1 | Dec 2023 21.7 | Mar 2024 20.6 | Jun 2024 19.0 | Sep 2024 40.9 | Dec 2024 44.5 | Mar 2025 35.9 | Jun 2025 31.5 | Sep 2025 30.5 | Dec 2025 28.3 | Mar 2026 20.0 | Jun 2026 —
- RGL: Sep 2021 16.9 | Dec 2021 19.8 | Mar 2022 15.4 | Jun 2022 10.3 | Sep 2022 10.1 | Dec 2022 9.8 | Mar 2023 8.9 | Jun 2023 12.0 | Sep 2023 12.8 | Dec 2023 13.5 | Mar 2024 13.0 | Jun 2024 13.4 | Sep 2024 15.8 | Dec 2024 22.9 | Mar 2025 16.0 | Jun 2025 16.4 | Sep 2025 16.0 | Dec 2025 17.3 | Mar 2026 11.9 | Jun 2026 —

## Enterprise Value & Book Value

What the numbers say: Renaissance Global Ltd leads both ev/ebitda at 9.1× and p/bv at 0.84×.

Investor read: Treat valuation as permission to investigate, never as a standalone reason to buy.

This conclusion weakens if: The next two comparable reports reverse the current p/bv signal.

Evidence: Renaissance Global Ltd · 9.1× | 26.6% versus #2 · Goldiam International Ltd | 0/8 recent comparable periods | 3/3 companies · 45 observations

Definition: EV/EBITDA includes debt in enterprise value and is useful across different capital structures. P/BV prices the company against its own book. Both are market multiples on reported figures, not intrinsic-value estimates and not forecasts.

### EV/EBITDA — lowest EV/EBITDA
1. Renaissance Global Ltd (RGL): 9.1
2. Goldiam International Ltd (GOLDIAM): 12.4
3. International Gemological Institute Limited (IGIL): 18.5

### P/BV — lowest P/BV
1. Renaissance Global Ltd (RGL): 0.8
2. Goldiam International Ltd (GOLDIAM): 4.8
3. International Gemological Institute Limited (IGIL): 9.8

### 20-quarter EV/EBITDA history
- IGIL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 — | Dec 2023 — | Mar 2024 — | Jun 2024 — | Sep 2024 — | Dec 2024 54.4 | Mar 2025 25.9 | Jun 2025 24.3 | Sep 2025 21.1 | Dec 2025 19.5 | Mar 2026 17.2 | Jun 2026 18.5
- GOLDIAM: Sep 2021 17.4 | Dec 2021 14.2 | Mar 2022 12.1 | Jun 2022 8.9 | Sep 2022 8.6 | Dec 2022 9.4 | Mar 2023 9.7 | Jun 2023 10.7 | Sep 2023 10.6 | Dec 2023 14.5 | Mar 2024 14.1 | Jun 2024 12.5 | Sep 2024 27.2 | Dec 2024 28.7 | Mar 2025 23.0 | Jun 2025 19.4 | Sep 2025 20.5 | Dec 2025 18.1 | Mar 2026 12.4 | Jun 2026 —
- RGL: Sep 2021 10.6 | Dec 2021 13.8 | Mar 2022 11.0 | Jun 2022 7.1 | Sep 2022 8.6 | Dec 2022 8.5 | Mar 2023 7.8 | Jun 2023 9.3 | Sep 2023 9.0 | Dec 2023 10.0 | Mar 2024 9.6 | Jun 2024 8.6 | Sep 2024 10.2 | Dec 2024 14.4 | Mar 2025 11.1 | Jun 2025 10.7 | Sep 2025 10.0 | Dec 2025 11.2 | Mar 2026 9.1 | Jun 2026 —

### 20-quarter P/BV history
- IGIL: Sep 2021 — | Dec 2021 — | Mar 2022 — | Jun 2022 — | Sep 2022 — | Dec 2022 — | Mar 2023 — | Jun 2023 — | Sep 2023 — | Dec 2023 — | Mar 2024 — | Jun 2024 — | Sep 2024 — | Dec 2024 — | Mar 2025 15.7 | Jun 2025 15.2 | Sep 2025 12.1 | Dec 2025 11.7 | Mar 2026 9.8 | Jun 2026 10.4
- GOLDIAM: Sep 2021 4.4 | Dec 2021 3.6 | Mar 2022 3.4 | Jun 2022 3.2 | Sep 2022 2.4 | Dec 2022 2.6 | Mar 2023 2.7 | Jun 2023 2.7 | Sep 2023 2.4 | Dec 2023 3.1 | Mar 2024 3.1 | Jun 2024 3.0 | Sep 2024 6.2 | Dec 2024 6.3 | Mar 2025 6.0 | Jun 2025 5.8 | Sep 2025 5.3 | Dec 2025 4.0 | Mar 2026 3.1 | Jun 2026 —
- RGL: Sep 2021 1.7 | Dec 2021 2.0 | Mar 2022 1.7 | Jun 2022 1.3 | Sep 2022 1.1 | Dec 2022 1.0 | Mar 2023 0.8 | Jun 2023 1.1 | Sep 2023 1.0 | Dec 2023 0.9 | Mar 2024 0.9 | Jun 2024 0.9 | Sep 2024 1.0 | Dec 2024 1.4 | Mar 2025 1.0 | Jun 2025 1.0 | Sep 2025 0.9 | Dec 2025 0.9 | Mar 2026 0.8 | Jun 2026 —

## Market action

Renaissance Global Ltd has the strongest one-year price move in Lab Grown Diamonds at -1.3%. Goldiam International Ltd leads on Mansfield relative strength against NIFTY at +24%. 2 of 3 covered companies are above zero on that measure. Every line covers 313 weekly closes through 2026-07-24.

### Strongest one-year price performers
1. Renaissance Global Ltd (RGL): -1.3%
2. Goldiam International Ltd (GOLDIAM): -3.6%
3. International Gemological Institute Limited (IGIL): -13%

### Strongest relative strength versus NIFTY 500
1. Goldiam International Ltd (GOLDIAM): 24%
2. Renaissance Global Ltd (RGL): 3.4%
3. International Gemological Institute Limited (IGIL): -0.1%

## What can make this comparison misleading?
- A high growth rate can be a low-base artefact. The page keeps level and change separate for that reason.
- A high ROCE can be temporary or flattered by a small capital base. Read it beside margin, cash conversion and reinvestment.
- The 4-Factor Sector Score ranks research priority, not portfolio action. Management quality, catalysts and risks need equally fresh evidence before capital is deployed.
- An “all companies” line chart preserves completeness, but rank changes should be checked against reporting dates before drawing a conclusion.
- 1 company draws at least one figure from a second data feed with too little overlapping history to cross-check against the primary source; it is marked unverified wherever that figure appears.
- 1 company is missing from the second-feed metrics by decision, not by absence: the two sources disagree, so nothing from the second is drawn. Read those rows as narrower evidence, never as a weaker business.
- Thin comparisons: Capital expenditure, Valuation have fewer than three usable current readings.

## Every company
- International Gemological Institute Limited (IGIL) — market value ₹14.6K Cr; latest fundamentals Jun 2026; second-feed figures WITHHELD
- Goldiam International Ltd (GOLDIAM) — market value ₹5.3K Cr; latest fundamentals Mar 2026
- Renaissance Global Ltd (RGL) — market value ₹1.3K Cr; latest fundamentals Mar 2026; includes UNVERIFIED second-feed figures

## Source standing of each company

Cross-checked: 1. Unverified: 1. Withheld: 1. Graded companies: 3.

1 of 3 companies draws at least one figure from a second data feed that could not be cross-checked against the primary source, because the two do not share enough reported history to compare. Those figures are marked unverified wherever they appear.

1 of 3 companies has a second data feed that is known to disagree with the primary source, so nothing from it is drawn: International Gemological Institute Limited (IGIL) — its two data sources disagree by up to 77% on reported income across 10 comparable periods, so its derived ratios are withheld.

- WITHHELD | IGIL | International Gemological Institute Limited | diff_gt_2pct | disagreement up to 77.49% over 10 comparable periods

- UNVERIFIED | RGL | Renaissance Global Ltd | too little overlapping reported history to cross-check the second feed

## Methodology and freshness

Fundamentals through Jun 2026; prices through 2026-07-24.
Up to 20 quarters per company. Reported history is normalized to Indian rupees crore. Missing values are not interpolated. Derived metrics are calculated only when their inputs are comparable.

## Frequently asked questions

### What is the Nifty Lab Grown Diamonds index?

The Nifty Lab Grown Diamonds index tracks India's listed Lab Grown Diamonds companies as a single basket. This page follows the same 3 companies and equal-weights them, so every company's weekly return counts once whatever it is worth, and the reading belongs to the Lab Grown Diamonds sector rather than to its largest constituent. Figures are as of Jun 2026.

### Which are the best Lab Grown Diamonds stocks in India?

Ranked by this page's four-factor score, Goldiam International Ltd places first among 3 listed Lab Grown Diamonds companies, followed by International Gemological Institute Limited. That is a ranking of published data — earnings, quality, valuation and market behaviour as of Jun 2026 — and not a recommendation; Sector Alpha is not registered with SEBI as an investment adviser.

### How many Lab Grown Diamonds stocks are listed in India?

This comparison covers 3 listed Lab Grown Diamonds companies in India, each above the size floor the site applies, with 20 quarters of reported figures per company where the filings exist. The full ranked list is on this page, as of Jun 2026.

### Which Lab Grown Diamonds company is the biggest?

Renaissance Global Ltd is the largest, with trailing-twelve-month revenue of ₹2,812 crore, ahead of International Gemological Institute Limited at ₹1,364 crore. That covers 3 of 3 companies with comparable reporting through Mar 2026.

### Which Lab Grown Diamonds company is growing fastest?

Renaissance Global Ltd has the fastest revenue growth at 35.1% year on year, across 3 of 3 comparable companies. Fast growth off a small base is not the same as proven scale — check whether the rate holds across several quarters on the chart above before treating it as a trend.

### Which Lab Grown Diamonds company has the best profit margins?

International Gemological Institute Limited has the highest operating margin at 60%, from 3 of 3 comparable companies. International Gemological Institute Limited shows the biggest recent improvement, at +2 percentage points. A high margin matters most when it is holding or rising, not when it is peaking.

### Which Lab Grown Diamonds company makes the most profit?

International Gemological Institute Limited earns the most, at ₹611 crore of trailing-twelve-month net profit, from 3 of 3 comparable companies. Goldiam International Ltd has the fastest profit growth at 45.3%, though growth off a small or recovering profit base overstates how much has actually changed.

### Which Lab Grown Diamonds company earns the highest return on capital?

International Gemological Institute Limited leads on return on capital employed at 68%, across 3 of 3 companies. Read it beside the length of its reported history: a high return that repeats for years is evidence of a durable business, while a single high reading can be a small capital base or one good year.

### Which Lab Grown Diamonds stock is the cheapest?

On guarded PEG — where a LOWER number is cheaper — Goldiam International Ltd screens cheapest at 0.38×. Only 1 of 3 companies pass the comparability guard, so this is not a sector-wide "cheapest stock" verdict. Cheap on a multiple is a reason to investigate, never a reason to buy on its own.

### Which Lab Grown Diamonds company has the strongest balance sheet?

Goldiam International Ltd carries the lowest comparable gross debt at ₹77 crore, from 3 of 3 companies. Absolute rupee debt alone does not settle it, because company scale differs — net debt and debt-to-equity in the chart above carry more information, and a very low-debt balance sheet can also mean under-investment.

### Is the Lab Grown Diamonds sector beating the market?

Lab Grown Diamonds has outperformed NIFTY 500 by 3.7% over the last 52 weeks and 2.1% over 13 weeks, measured on an equal-weight index of its current members. Inside the sector, 2 of 3 covered companies are beating the market on their own. Sector strength does not transfer evenly to every stock in it.

### Which Lab Grown Diamonds stock has the strongest price momentum?

Goldiam International Ltd has the strongest relative strength against NIFTY 500. Relative strength answers last, after growth, quality and valuation: price can move well before the fundamentals confirm it, and sometimes without them confirming at all.

### Which Lab Grown Diamonds company scores highest for research priority?

Goldiam International Ltd scores 60.6 out of 100 with 92.6% evidence confidence, from 22.5 points on growth and earnings, 20.8 on capital efficiency, 12.3 on valuation and 5 on relative strength. This ranks what deserves work next. It is not a buy recommendation, and management quality, catalysts and risk still need separate research.

### How many Lab Grown Diamonds companies does this comparison cover, and over what period?

It compares 3 listed companies over up to 20 reported quarters of fundamentals and 10 fiscal years of capital allocation, ending Jun 2026, plus weekly price and relative-strength history. Membership is the full sector list — nothing is dropped for having thin data.

### What is the total market cap of the Lab Grown Diamonds sector?

The 3 Lab Grown Diamonds companies on this page carry ₹21,143 crore of combined market value. International Gemological Institute Limited is the largest at ₹14,613 crore, about 69% of the sector's total on its own. Market value moves with price, so this reading is dated 2026-07-29.

### How is the Lab Grown Diamonds sector performing?

2 of the 3 covered Lab Grown Diamonds companies are beating NIFTY 500 on Mansfield relative strength. The sector itself is 3.7% ahead of NIFTY 500 over 52 weeks on an equal-weight index of its current members. Readings are as of 2026-07-29.

### Why are some values on this page blank?

A blank means that company did not report a comparable figure for that period, so nothing is shown. Missing observations are never interpolated, carried forward, or replaced with a similar-looking accounting line, and a company with missing evidence has its research score pulled toward neutral rather than being scored as bad.

### Is this investment advice?

No. Every figure here is a deterministic calculation from reported company filings and market data, published for research. It contains no recommendation to buy or sell any security, does not account for your circumstances, and is not a substitute for advice from a licensed adviser.

Narrative sector analysis: https://www.sectoralpha.in/sectors/lab-grown-diamonds