27.06克拉蛋面斯里蘭卡“皇家藍”藍寶石與鑽石戒指, 附GRS證書

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)