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 International Gemological Institute (IGI) has introduced Light Performance Grading Reports showcasing round brilliant-cut diamonds with exceptional optical qualities. The IGI Light Performance grading...
A crypto-millionaire from the US has reportedly paid a record $1.5m for a gold pocket watch recovered from the wreckage of the Titanic.
Auctioneers in...