Editor’s Note
This article highlights the robust Q4 2025 financial results of the International Gemmological Institute (IGI), driven by strong demand across its core certification services.

International Gemmological Institute (India) Limited (IGI), one of the world’s largest independent providers of diamond and jewelry certification services, reported strong financial performance for the quarter ended December 31, 2025. This performance was driven by sustained demand in natural diamonds, lab-grown diamonds, jewelry, and gemstones.
The company recorded a year-on-year revenue increase of 21% from operations in Q4 2025, while EBITDA grew by 26% during the same period. Income from certification increased by 23% this quarter, reflecting increased penetration and market share in key segments. Overall consolidated certification revenue for the quarter was ₹3,049 million, while EBITDA was ₹1,913 million. Profit after tax (PAT) increased by 18% year-on-year to ₹1,346 million.
International Gemmological Institute (India) Limited (IGI) reported a 17% increase in revenue from operations and a 23% increase in EBITDA for the full year ended December 2025. The EBITDA margin increased from 56.9% to 59.9%, reflecting improved operating leverage and efficiency. Consolidated PAT for this 12-month period increased by 24% to ₹5,316 million, while the margin increased to 43.3%.
The company’s Managing Director and CEO, Tehmasp Printer, commented on this performance, stating that IGI delivered strong operating results while also advancing its strategic priorities.
The company stated that the industry’s fundamental conditions remain favorable. Rising disposable income, a growing middle class, and an increasing preference for certified diamonds and jewelry are driving long-term growth. In particular, lab-grown diamonds are being rapidly accepted globally due to their affordable pricing and sustainability, leading to an increase in certification volumes.
IGI believes its diversified service model, which includes in-lab, in-factory, and mobile certification services, positions it well to capitalize on changing customer needs and the growing demand for transparency and trust in the global diamond and jewelry industry.
