645
3.70克拉「哥倫比亞」天然袓母綠配鑽石戒指, 袓母綠未經油浸處理
One oval mixed-cut emerald, 3.70 caratsBrilliant-cut and shield-shaped diamonds in the surround and shoulders, together approximately 1.60 caratsPlatinum, 18 karat white and yellow gold附 美國AGL 及 瑞士SSEF 證書