18ct White Gold 1.00ct Sapphire and Diamond Halo Ring. FEU-1473. This beautiful ring features a stunning 1.00 carat blue Sapphire which is framed with a halo of brilliant cut white diamonds. Exquisitely crafted from 18 carat white gold, this ring has a total diamond weight of 0.28 carats.  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 Sapphire pieces online and in store to complement this ring. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.