Wishlist Product Bvlgari Monete 18kt Gold Earrings with Diamonds, 4th Century Coins. George Weil 18k Gold Coral Onyx Diamond Clip-On Earrings, London 1968 George Weil Earrings, Onyx, Diamonds and Gold, London 1975. Bvlgari Monete, Faustina the Younger, earrings, 18kt gold with accent diamonds.