18ct White Gold 8.48ct Kunzite and 0.15ct Diamond Cushion Necklace. PUNQ0000017. This unique 18ct white gold pendant features a gorgeous faceted Kunzite gemstone. The Kunzite is set below a single sparkling brilliant cut diamond. This feminine, elegant pendant is presented on an 18 inch 18ct white gold chain with a bolt ring clasp. At C W Sellors, we have an expert team of gemstone and diamond specialists who handpick and grade each jewel to meet our high standards and a team of talented in house designers who combine their talents to bring you our exclusive Precious Gemstone collection. You can find other precious gemstone pieces online and in store to compliment this necklace. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.