From Tiffany & Co. This half-circle band Ring is channel-set with round brilliant-cut platinum diamonds. It is a piece of jewelry that gives off a beautiful sparkle and will brighten up your wrist. Brand Tiffany & Co. Half Circle Channel Setting Ring Material Engraving Platinum Diamond (Engraved PT950) Size Size: US: 3.25 International: No. 6.5 (6.5 JP / US 3.75) Maximum width 2.2 mm (0.09 in) Thickness: 1.7 mm (0.07 in) 2.6 G Accessories Item details It has been polished and is in good condition.