Roberto Coin pendant necklace from the Pois Moi Collection. 18-karat yellow gold with divot details. Square pendant with inlaid mother-of-pearl. Pendant, approx. 0.5″H x 0.5″W. Delicate rolo chain necklace, 18″L. Lobster clasp. About Roberto Coin:The Roberto Coin brand was born in 1996 when Coin, driven by his innate love for the world of art and fashion, decided to leave his career as a successful hotel manager to follow his dream and face a new adventure. Perpetually reinventing his personal style, Coin produces more than 600 unique jewelry models annually. Each piece is finished with a signature touch— a small ruby, dedicated as a secret gift of good wishes from the designer.