Earrings by John Field These earrings are made from sterling silver and 24ct gold. The technique used is an ancient Korean one, where the gold is fused to the silver. Letters and symbols have been punched into the surface by hand, so each pair will be slightly different. The earrings measure 23mm in diameter. Features Primary Material : sterling silver Other Materials : 24ct gold Fitting Type : Continuous Hoop Dimensions (mm) : 23 x 23 x 3 One of a Kind : No Metal : 24ct gold and sterling silver Hallmarked : No Wire Material : sterling silver Cleaning InstructionsThese round disc earrings have been coated in a protective layer to help prevent tarnishing.