Sotheby’s Dubai unveils one of the world’s largest polished diamonds

DUBAI: Colored diamonds have made history this year, headlining Sotheby’s flagship jewelry auctions in Hong Kong, Geneva and New York. Adding to the lineup, Sotheby’s Dubai today unveiled another landmark gem: The Golden Canary,  set to highlight Sotheby’s Magnificent Jewels auction in New York on Dec. 7 with an estimate in the region of $15 million.