This is an authentic ROBERTO COIN 18K Rose White Gold Large Princess Flower Pendant Necklace. The necklace is crafted of 18 karat rose and white gold, and features a large princess flower motif on a long double chain accented with a station set with approximately .08 total carat weight of diamonds. The necklace also features the signature synthetic ruby on the chain tag. PLEASE NOTE: The lobster claps is a generic 14 karat rose gold replacement.