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 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...
Grading reports produced by IGI will now offer a "light performance score" for round brilliant cut diamonds.
They'll provide an overall score - low, moderate,...