18ct white gold & diamond oval-cut ring 50.5EUBespoke 18ct white gold & diamond oval cut ring 50. 5EU A stunning 18k white gold diamond engagement ring. The ring is set to the centre with an oval cut diamond weighing 1. 00ct, D colour and SI1 clarity. The centre diamond is further complemented with 12 round brilliant cut diamonds set to the shoulders with an approximate total weight of 0. 16ct, that are well matched in colour and clarity. The ring measures 2mm wide, has a gross weight of 2. 85