Five contemporary works by jewelry artist Anna Hu, including a show-stopping diamond necklace, will headline Sotheby's Magnificent Jewels and Jadeite Autumn Sale in Hong Kong on October 7. Sotheby's provided Hu with the 100.02-carat fancy intense yellow diamond that is the colorful focal point of the Dunhuang Pipa necklace. The impressive piece, which resembles a […]