PLATINUM DIAMOND NECKLACE: This petite necklace has one round brilliant-cut diamond that weighs approx. .50 Ct, it is bezel set. The necklace is signed ''Tiffany and Co. / (Elsa) Peretti''. Total weight: 3.2 grams. 16'' in length. Sold with current Florida Diamond Appraisers appraisal for $5,000.