Authentic Tiffany & Co Etoile Diamond Ring in Platinum Setting, with a single GIA Certified Diamond (D color/SI1)  Ring Size: 5  Total Approximate Weight: 5.40 grams Diamond - 0.22 carat  Hallmarks: © Tiffany & Co, PT950 .22 ct, serial number  Estimate Retail: $3100  GIA certificate included with purchase Luxury Platinum Round Cut Signet Ring, Diamond White Platinum Signet Ring With Round Cut, Luxury White Gold Ring With Single Diamond, Platinum Diamond White Signet Ring With Round Cut, Polished Round Diamond Ring, Diamond White Polished Finish Round Band Rings, Diamond White Rings With Polished Finish, Elegant Gia Certified Diamond Signet Ring, Anniversary Solitaire Signet Ring With Round Band