This method works great on sterling, silver, gold, costume jewelry metals.. But do be careful if you’re got a lot crystals glued into a setting and limit soaking to no more than 90 seconds – or you might melt the glue. Also, don’t immerse natural pearls in this solution – it’s too caustic. It is however, fine for most gemstones and this homemade jewelry cleaner works wonders on cubic zirconia (CZ stones)! And in case you’re wondering ….it also works fab for cleaning silverware, silver frames or any silver home decor!
i work in precious metals so i have used rubbing alcohol, just put gold or silver in a jar, with the rubbing alcohol and wait overnight. there should be a drastic difference in shine and clarity. it does work for all types of jewelry and precious metals except for pearls and rhodium. definitely do not use this stuff on rhodium. it may cause an explosion, just maybe with rhodium.