Phillips’ New York Jewels auction, scheduled for December 9, will be led by a Tiffany & Co. Fancy Intense diamond and platinum ring, estimated to sell at $1,500,000 – $2,500,000.   Credit: Tiffany & Co.   The 3.02-carat diamond is a fancy intense, cut-cornered square modified brilliant-cut gem. According to Phillips, Tiffany has re-cut the … Continue reading PHILLIPS TO AUCTION A RARE, FANCY INTENSE BLUE DIAMOND RING