This is an authentic ROBERTO COIN 18K Yellow White Gold Diamond Flat Station Toggle Necklace. The necklace is crafted of 18 karat yellow gold and features multiple stations and approximately .10 total carat weight of pave-set diamonds along with a synthetic ruby on the toggle clasp. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.