The initial public offering (IPO) of Blackstone-backed International Gemmological Institute (IGI) India Ltd. is set to launch on December 13, 2024, and will remain open for subscription until December 17, 2024. The IPO comprises a fresh issue of shares worth ₹1,475 crore and an offer for sale (OFS) worth ₹2,750 crore, making the total issue …