27.06克拉蛋面斯里兰卡“皇家蓝”蓝宝石与钻石戒指, 附GRS证书

Accompanied by report no. GRS2008-011492 dated 7 January 2008 from the Gem Research Swiss Lab stating that the 27.06 carat sapphire is of Sri Lankan origin, vivid blue color (GRS type "royal blue") and enhanced by heat (no residues present)