Earrings by Josef Koppmann Silver and 24ct Earrings with Tourmalines. Designed and hamdmade by jewellery designer Josef Koppmann. Features Primary Material : 24ct gold and sterling silver Fitting Type : Post Dimensions (mm) : 20x8x4 One of a Kind : Yes Metal : 24ct gold and sterling silver Hallmarked : Yes Wire Material : sterling silver Finish : satin brush