International Gemmological Institute is a certificate issuer for diamonds and colored stones, not a diamond owner. Its economics are built on a per-report fee, a trusted standard and a global laboratory network that connects Indian manufacturing to retail markets in the US, Europe and the Middle East. Q2 FY27 demonstrated the model at scale: 4.35 million reports produced INR 3,980 million of revenue, INR 2,445 million of EBITDA and INR 1,858 million of PAT, with revenue up 31%, EBITDA up 39% and PAT up 43%. H1 revenue rose 27%, EBITDA 34% and PAT 37%. Group EBITDA margin was 61.4% in Q2 and 60.9% in H1, while India standalone margin was 69.5% in Q2 after people, marketing and commission investment. The company was debt-free, held INR 1,074 million of cash and generated INR 4,157 million of operating cash flow in H1.
The demand mechanism is volume, not price. IGI certifies natural diamond loose stones and jewellery, lab-grown diamond loose stones and jewellery, and colored stones through AGL. In Q2 FY27, LGD loose certification grew 37%, LGD jewellery grew 47%, natural diamond loose certification grew 8% and natural diamond jewellery grew 3%. Natural diamond loose stones outgrew a natural market that management said did not grow, supporting the share-gain argument. Lab-grown is the larger growth engine: management said large Indian growers are adding reactors and probably doubling capacity in three years, with supply at its base rather than its peak. IGI holds a historically strong position in lab-grown certification, and every incremental stone needs an independent report to be sold with commercial confidence.
The near-term earnings path is guided qualitatively. Management set FY27 revenue growth of 15% and EBITDA growth of 20% in May 2026, maintained it after Q1, then revised it upward after H1. It now expects full-year growth similar to H1's 27% revenue and 34% EBITDA growth, but has not given a new numeric range. I treat the H1 rate as the current directional anchor, not a precise forecast. If H2 grows at a similar rate, operating leverage should keep EBITDA growth ahead of revenue, as it did in Q2. The main swing factors are LGD volume, natural diamond jewellery demand, AGL consolidation and the India margin.
AGL is the strategic option. The acquisition closed on 30 January 2026 and added 3% to Q2 revenue growth and 2% to EBITDA growth; H1 contribution was the same. The base business still grew 29% in Q2 certification revenue and 31% in subsidiary revenue excluding AGL. Management plans to take AGL global using collection windows and mobile laboratories, starting with Jaipur, but has not disclosed target markets or dates. The economic test is whether AGL converts from a US-centric consolidation item into a global colored-stone certification line with cross-sell into IGI's diamond customers.
Capacity and capital allocation are supportive but not fully quantified. IGI started operations in Italy, is preparing Saudi Arabia and set up a company in Botswana in September. Overseas certification revenue grew 31% without AGL and management says the business is increasingly profitable. No project budgets, capacity targets or commissioning dates were disclosed for these labs. The company is using AI-based scheduling to protect turnaround times as volumes rise. Capital priorities remain growth investment, selective bolt-on acquisitions and surplus cash return. The first interim dividend of INR 2.55 per share was paid in September, a tangible shift from earlier dividend intent.
Management delivery is mixed but net positive. CY25 revenue and EBITDA exceeded the original 15-20% revenue guidance. AGL was flagged and acquired. The dividend was paid. FY27 guidance was revised upward after H1 rather than defended. The unresolved items are the missing numeric FY27 range, India standalone margin below the 70% reference, and AGL's global plan without territories or dates. Those are disclosure and execution items, not evidence of failure.
The thesis rests on four falsifiers. First, if wholesale LGD prices break below the stable 80-120 per carat range and growers with 8-12% returns push certification fees lower, the volume-led model loses pricing. Second, if 8-10 large growers that contribute 40-50% of revenue consolidate or dual-source, concentration becomes an earnings risk. Third, if large retailers move to in-house certification rather than independent IGI reports, the addressable certification market shrinks at the retail end. Fourth, if India, roughly 75% of revenue, slows or gold-price volatility keeps natural diamond jewellery demand weak, the higher India margin and group revenue growth both come under pressure. AGL integration is a smaller falsifier: if colored-stone cross-sell does not appear, the acquisition remains a modest US-centric addition rather than a new growth platform.
companyname: International Gemological Institute Limited ticker: IGIL sector: Gemological Certification and Services IGI is a global provider of independent certification and grading services for diamonds, colored gemstones, and jewelry. Founded in 1975 in Antwerp, Belgium, the company operates 36 laboratories and 21 gemological schools across 10 countries, with 1,705 employees including 606 gemologists as of FY2026. The core business is issuing certification reports that verify a stone's origi...
Read the full report →new product segment, geographic expansion, acquisition inorganic, management upgrade
Management explicitly revised its prior FY27 guidance of 15% revenue growth and 20% EBITDA growth upward, saying it expects to outperform for the full year similar to H1, when revenue grew 27% and EBITDA grew 34%. It did not state a new numeric range.
Guidance no_dataoverdeliver
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