18ct White Gold Diamond Halo Cluster Ring 0.76ctDiamond 'halo' cluster ring with a central Edwardian cut diamond weighing 0. 76ct. Colour estimated as I J. Clarity estimated as SI1. The centre diamond has a lower surround of twenty diamonds and eight brilliant cut diamonds set into each shoulder. Total diamond content in mount 0. 24ct. The cluster measures 8. 3mm in diameter. Mounted in 18ct white gold with four claw setting to the centre diamond and grain settings to the surround with cut down