563
4.93克拉 「斯里蘭卡」天然亞歷山大變色石 配 鑽石戒指, 亞歷山大變色石未經加熱處理
One oval alexandrite, 4.39 caratsTen oval diamonds in the surround, totalling 4.40 caratsEmbellished by smaller round alexandritesTitanium附 瑞士 Gübelin 證書
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