DiamonFire Collection Sterling Silver Necklace With a Blue OVal Cubic Zirconia Center Stoner Surrounded by White Cubic Zirconia in a Halo Setting. Add a royal sparkle to your outfit with this spectacular necklace with zirconia decorated chain, featuring a sapphire blue Diamonfire zirconia central stone and pave clear Diamonfire zirconia surround (2.39ct total). This majestic necklace has an extendable length of 40cm-45cm and will look impressive on its own but why not wear with the matching stud earrings and ring to complete the look! Diamonfire cubic zirconia stones are cut specially with 57 facets, just like real brilliant cut diamonds. Each piece in the collection is crafted in sterling silver with a triple plated finish of palladium, platinum and rhodium, for an almost life-long tarnish protection.