Elegant Womens Blue Sapphire Ring Dainty 925 Sterling Silver Sapphire Ring Birthstone Jewelry for Ladies Stone Name: Blue Sapphire Stone shape: Round Stone Weight: 3 Carats Stone Dimensions: 9.4mm x 9.4mm Heat Treatment: No Type: Natural, Unheated, Untreated Metal: Sterling Silver 925 Handmade: Yes, handmade artisan ring