India, Oct. 26 -- International Gemological Institute (IGI), one of the largest diamond certification companies, recorded a significant rise in its earnings during the last quarter of 2026, driven by the rising demand for lab-grown diamonds and the company's improved operational efficiency. Unlike diamond manufacturers, IGI generates revenue by providing grading and certification services for diamonds, gemstones and jewellery, which requires a significantly lower level of capital investments.

With a market capitalization of Rs. 16,046.09 crore, the shares of International Gemological Institute Ltd were trading at Rs. 371.30 per share, down 3.24 percent from its previous closing price of Rs. 382.30 apiece. The stock trades at a P/E of 24...