18ct Yellow Gold 1.00ct Pink Sapphire and Diamond Trilogy Ring. FEU-1281. This beautiful 18ct yellow gold trilogy ring features a luxurious 1.00 carat emerald cut pink Sapphire. Two sparkling white diamonds, with a total weight of 0.33 carats, are set either side of the Sapphire in white gold. Completed with a solid 18ct yellow gold band. The perfect ring for someone special. 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.