An Unmounted Sapphire
The cushion-shaped sapphire, weighing 11.42 carats
注脚
Accompanied by a GRS report stating that the natural sapphire has no indications of thermal treatment and originates from Sri Lanka (Ceylon). Report number GRS2016-028103, dated 4 February 2016.11.42克拉天然無經加熱處理斯里蘭卡藍寶石附GRS證書