Earrings by Miranda Sharpe These Petri green studs are made from silver which has an engraved surface. Layers of vitreous enamel are fired over the texture which is visible through the transparent enamel. Additional details are applied in blue & yellow enamel. The enamel us ground back to have a Matt finish. The silver has a brushed finish with burnished edges. Features Primary Material : silver Other Materials : vitreous enamel Length (mm) : 15 Fitting Type : Post Dimensions (mm) : 15 X 15 X 1.2 One of a Kind : No Metal : silver Hallmarked : Yes Wire Material : sterling silver Cleaning InstructionsWarm soapy water with a soft cloth or an old toothbrush should be sufficient to clean these earrings. If the silver dulls then a gentle rub with a silver polishing cloth should restore the shine.