Made of cubic zirconia and crystal. Wearing this kind of jewelry will make you more eye-catching. Cubic zirconia is much harder and very durable. The big Cubic Zirconia is pronged to the jewelry item to secure from loosing. A prong setting is one component of what is known in the jewelry business as a head, a claw-shaped type of binding (typically 3, 4, or 6 individual prongs per head) that is welded or soldered to a jewelry item in order to mount (or set) a stone to the jewelry item. One earring Weight: 14g. Size: 6.3cm by 1.6cm (2.5 Inch by 0.6 Inch) Intended Use: Wedding/Mothers-day/Valentines-day/Anniversary/Birthday/Party/Prom/Christmas. Wrapping: Come with some spare crystals, and a gift box or favor bag (depend on product size). If you need assistance please contact us.