This necklace was purchased direct from the Tiffany & Co Labellov Authentic necklace Tiffany & Co. Elsa Peretti Open Heart freshwater cultured pearl necklace tiffany and save up to 70% off at Poshmark now! The single strand composed of 95 natural pearls graduating from approximately 8.7mm to 4.3mm, the platinum clasp set with a lovely tiffany stone and amethyst pendant. Fortunately, the quality of our pearls is higher than that of Tiffany's. It's The Perfect Time To Find a Jewelry Design That's Perfectly You! Tiffany & Co. is 18 inches long with a diamond clasp stamped.