Blue Chalcedony, Sapphire and Diamonds Octagon Ring in 18K White Gold, from 'Limited Edition' Collection Stone size: 9 x 7 mm Gemstone Weight: Chalcedony- 2.12 Carats Sapphire- 1.24 Carats Diamond: G-H / VS, Approx Wt: 0.40 Carats Please allow 5-6 weeks for this item to be delivered.