Julie Baker 18k Yellow Gold Engraved Blue Topaz Ring. This ring is dainty and would be a perfect gift for any lady. The blue topaz has an wonderful luster and measures about 10mm wide and 8 mm tall. The 18k gold band has small, but exquisite detailing and design on the base and each side of the shank. When worn on the finger the rings sits about 5mm tall. Size 5 1/2