PRODUCT DESCRIPTIONSpecifications:Jewelry Type: Pure 925 Sterling Silver Prong Set RING.Gemstone Name: BLUE SAPPHIREPURITY:Gemstone Treatment : 100% Natural Stone ; NO TREATMENT (Untreated/Unheated)Silver Purity: 925 per 1000 parts (925 STERLING SILVER)WEIGHT:Ring Weight : 2.890gmsSIZE:Jewelry Size: 7.25USItem Code: R2/18