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3.42克拉「喀什米爾」天然藍寶石配鑽石戒指, 藍寶石未經加熱處理

One oval sapphire, 3.42 caratsTwo shield-shaped diamonds and brilliant-cut diamonds, together weighing approximately 1.40 caratsPlatinum附 美國AGL 及 瑞士Gübelin 證書