Use a Selvyt JC impregnated cloth to remove the dirt and grime from the item then give the piece a final polish with a Selvyt SR or Selvyt PR cloth. This will have your precious items looking just like new Impregnated Jewellery Cleaning Cloths are ideal for cleaning small items of gold and platinum jewellery. Manufactured with impregnated 100% cotton. Washing reduces efficiency of impregnation. Research lead impregnation techniques at Selvyt has produced this advanced product and great all rounder for reviving items back to highest levels of brilliance. - All jewellery & watches - Precious metals - Most decoratively plated items