About the brand: Timeless beauty and superior craftsmanship - a jewelry icon. This is an authentic, pre-loved Tiffany & Co. piece. It's possible that there may be some gentle wear. Platinum Diamond = approximately 0.60 ct. tw. Pendant drops approximately 1.10in Approximately 17.00in long Lobster claw clasp closure It is customary to treat most gemstones to achieve enhanced color and durability. Some of these treatments may not be permanent, and may require special care.