Birthstone Blue Sapphire Rings for Women & Fashion Jewelry Purity Aquamarine Ring Rings for women weight 12.4~15.8 gram /0.4373~0.5573 ounce Blue rings for women / men It's unisex ring. Blue gemstone ring made with crystal and gold plated Blue crystal ring gemstone length 0.67 inch and width 0.43 inch Blue promise ring included gift box (5*5*3cm)