The 101.29-carat Allnatt diamond, described as one of the world's most significant fancy vivid yellow stones, is to be auctioned at Sotheby's Geneva, with...
The event programme at Oroarezzo, from 11th to 14th May, will include an in-depth analysis of processing techniques for the jewellery and fashion accessory...
The International Gemological Institute (IGI) has introduced Light Performance Grading Reports showcasing round brilliant-cut diamonds with exceptional optical qualities. The IGI Light Performance grading...