Earrings by Josef Koppmann These 24ct Gold and Silver Earrings with White Round Druzy Agate are designed and handmade by jewellery designer Josef Koppmann. Features Primary Material : 24ct gold and silver Other Materials : druzy agate Fitting Type : Post Dimensions (mm) : 30 x 14 x 6 One of a Kind : Yes Hallmarked : Yes Wire Material : silver Cleaning InstructionsThe earrings are best kept clean by rubbing and brushing gently under running water with bicarbonate of soda. Do not submerge in water for long periods.