Diamond and Gem Cleaning Cloth - Gold, Silver, Diamonds, Crystal or Gemstones This synthetic microfiber cleaning cloth is chemical free, non-abrasive, hypo-allergenic and lint free. Cloth Size: 8" x 8" Similar to suede cloths, but lasting much longer, these cloths are great for cleaning Diamonds, crystal or gemstones without the need of chemicals. Just add a little water and you'll be amazed at how everything sparkles! Also works great on Gold and Silver Jewelry.