A gold and diamond necklace and ring suite, by Roberto Coin, 2006The 18 carat yellow gold collar composed of articulating woven links, to a brilliant-cut diamond clasp, the reverse accented by a circular-cut ruby, the ring en suite, necklace signed Roberto Coin, both with maker's marks RC and partial UK hallmarks, necklace length approx. 42.0cm, ring size approx. M (leading edge), both with maker's cases and boxes (2)