544
10.47及7.38克拉「斯里蘭卡」天然變色藍寶石 配 藍寶石及鑽石戒指, 變色藍寶石未經加熱或淨度處理
Two oval colour-changing sapphires, 10.47 and 7.38 caratsTiny round diamonds and sapphires in the surround and basket18 karat white gold附兩張 美國 AGL證書