Lot 983. 10.66 carat natural untreated Colombian emerald and diamond ring. Estimate HKD: 3,500,000 - 4,200,000 (USD: 448,700 - 538,500). © 2019 China Guardian (HK) Auctions Co., Ltd.

Centring on a pear-shaped emerald weighing 10.66 carats, to a stylised mount embellished with brilliant-cut diamonds totalling approximately 2.10 carats, mounted in platinum. Ring size: 7 1/4

AGL report numbered 1098030, 11 January 2019, stating that the emerald is 10.66 carats, natural, Green colour, Colombian origin, no clarity enhancement;

China Guardian. Important Jewels and Jadeite, 2019 Spring Auctions