This is an authentic TIFFANY Platinum 18K Yellow Gold Yellow Diamond Crown Key Pendant. This stylish necklace is crafted of platinum with a crown key pendant that is lined with white diamonds and a fancy yellow diamond set in platinum and 18 karat yellow gold all weighing approximately .20 total carat weight. Indulge in this lovely necklace with the timeless style of Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.