18ct White Gold 0.50ct Diamond Trilogy Bar Set Ring. FEU-445. This trinity diamond ring features three brilliant cut diamonds totalling 0.50cts which sit within a snug 18ct white gold bar setting to complete the modern twist on a classic design. At C W Sellors, we have an expert team of 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 Diamond collection.  You can find other diamond engagement rings and wedding bands to complement this ring online and in store.  All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.