Ring 18ct marquise topaz and diamond

A striking 18ct white gold cluster ring six claw set to the centre with one approximately 21.5mm x 9.5mm marquise-shaped chequerboard cut sky Blue Topaz of estimated weight 10.9ct, bright and eye clean, grain set to the surround with thirty two approximately 1.5mm - 1.7mmin diameter round brilliant cut diamonds of total estimated weight 0.60ct all held on a wire gallery grain set down the shoulders with ten approximately 1.5mm in diameter round brilliant cut diamonds of total estimated with 0.15ct ( graded in mount as Colour: G_H, Clarity:VS-SI) on a 2.7mm wide low domed half round band.  Weight 9.8 grams.