Christie’s Hong Kong Magnificent Jewels auction in Hong Kong (November 26) will feature a varied selection of diamonds and diamond jewellery, including one very special ring estimated to fetch millions.   Credit: Christie’s   The highlight of the auction is a ring set with a Fancy vivid blue square emerald-cut diamond of 3.24 carats by … Continue reading CHRISTIE’S HONG KONG TO AUCTION A $7.5 MILLION DIAMOND RING