Lots of sparkle are produced by a magnificent clear round cut cz cubic zirconia stone in a bezel basket sterling silver setting. Round cut CZ stones are the perfect timeless add-on to your jewelry collection. UNISEX. FOR PIERCED EARS ONLY. iJewelry2 offers sizes 4mm (0.15"), 5mm (0.2"), 6mm (0.25"), 7mm (0.28"), 8mm (0.32"), 9mm (0.35"), 10mm (0.40") and 12mm (0.5").