Blue Topaz Ring handcrafted in solid 18ct gold. Single 6.3 ct genuine topaz. Heart shaped. Available from sizes H to Z including half sizes. Size: 10.4 mm (0.41 in). Material: 18ct Gold. Total metal weight: 3.5 gr. 1 heart shaped blue topaz (10 x 10 mm) = 6.3 ct. Colour: Blue. Stone cut: Heart Shaped. Anniversary: 4th Anniversary. Birthstone: November.