Private equity company Blackstone Inc (BX.N) said it has fully acquired the jewellery certification firm International Gemological Institute (IGI) from China's Fosun (0656.HK) and the company's founding family.

• Blackstone bought IGI, whose majority revenue and profits come from India, for about $530 million, a person with direct knowledge of the matter said on condition of anonymity.
• A statement said Blackstone had purchased an 80% stake from Fosun and 20% from the Lorie family.