This is an authentic ROBERTO COIN 18K White Gold Diamond .46ctw Tulip Stud Earrings. The earrings are crafted of 18 karat white gold and feature three-prong set solitaire round brilliant cut diamonds, weighing approximately .46 total carat weight with SI1 clarity and H color. The earrings also feature 4 synthetic rubies underneath the setting and the backings. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.