Specifications:Jewelry Type: Pure 925 Sterling Silver Bezel Set RING.Gemstone Name: BLUE SAPPHIRE PURITY:Gemstone Treatment : 100% Natural Stone ; NO TREATMENT (Untreated/Unheated)Silver Purity: 925 per 1000 parts (925 STERLING SILVER)WEIGHT:Ring Weight : 6.510gmsSIZE:Ring Size: 6.5 USItem Code: R1/10