A beautiful Tiffany & Co. 18K yellow gold Elsa Peretti Diamond by the Yard necklace, jeweled with a .12ct. round brilliant cut diamond F-G/VS (3.1mm. in diameter). The chain measures 16″ long. Total weight is 1.9 grams. Stamped Tiffany & Co. AU 750 Peretti. We guarantee all items to be 100% authentic and as described. We support authenticity or your money back 100%. We only sell 100% authentic Tiffany & Co. jewelry!