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18.01克拉「斯里蘭卡」天然藍寶石配鑽石戒指，藍寶石未經加熱處理
Set with a step-cut sapphire weighing 18.01 carats, between two triangular diamonds, size 55.
Accompanied by SSEF report no. 137317, stating that the sapphire is of Ceylon origin, with no indications of heating; and Gübelin report no. 24020085, stating that the sapphire shows no indications of heating.
附瑞士SSEF證書及瑞士Gübelin證書
Accompanied by SSEF report no. 137317, stating that the sapphire is of Ceylon origin, with no indications of heating; and Gübelin report no. 24020085, stating that the sapphire shows no indications of heating.
附瑞士SSEF證書及瑞士Gübelin證書