THIS LOT IS TO BE SOLD WITH NO RESERVE
517
15.53克拉天然星光紫色剛玉配黑鑽戒指, 剛玉未經加熱處理
A cabochon purple star sapphire, 15.53 caratsCircular-cut black diamonds in the surround, totalling approximately 4.15 carats18 karat blackened gold附 瑞士Gübelin 證書