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Carvin French
3.74克拉「哥倫比亞」天然祖母綠配鑽石戒指, 祖母綠未經淨度處理, Carvin French
One octagonal step-cut emerald, 3.74 caratsTwo rectangular-shaped diamondsPlatinumMaker's mark for Carvin French附美國AGL, 瑞士SSEF 及Gübelin證書