DiamonFire Earring Collection Sterling Silver Stud Earrings Decorated With A Cushion Cut Sapphire Blue Cubic Zirconia Stone In A White Stone Halo Setting. These beautiful cushion cut sapphire blue zirconia stud earrings add a colourful elegance to any outfit. Featuring Diamonfire cubic zirconia stones which are cut specially with 57 facets just like a real brilliant cut diamond. The product also is made from sterling silver with a triple plated finish of palladium, platinum and rhodium for an almost life-long tarnish protection.