Earrings by Josef Koppmann 18ct Gold Earrings with Rock Crystal drop earrings. Designed and handmade by jewellery designer Josef Koppmann. Features Primary Material : 18ct gold Other Materials : rock crystal Fitting Type : Hook Dimensions (mm) : 30x15x9 One of a Kind : Yes Metal : 18ct gold Hallmarked : No Wire Material : 18ct gold Finish : matt