Heart Shaped Swiss Blue Topaz & CZ Ring in solid sterling silver. Material: Sterling Silver. Total metal weight: 5.0 gr. Heart shaped Swiss blue topaz (11 x 11 mm) = 5.25 ct total. Round brilliant cut cubic zirconia (1 x 1 mm). Colour: Blue. Stone cut: Heart Shaped. Occasion: Engagement, Wedding, Graduation. Anniversary: 4th Anniversary. Birthstone: November.