鉴定7.09克拉枕形切割主石为天然蓝宝石，颜色deep royal blue深皇家蓝色，产地斯里兰卡，未经加热

18K white gold inlay 7.09 carat natural Sri Lanka deep royal blue deep royal blue gems, with diamonds, ring size 13.5
Identification of the 7.09-carat pillow-shaped main stone is a natural sapphire, the color deep royal blue deep royal blue, origin Sri Lanka, unheated