Stones that are sensitive to this cleaning process are the following: Morganite, Emeralds, Tanzanite, Opals, Pearls, Lapis Lazuli, Malachite, Onyx, Turquoise, Mystic Topaz, Carnelian, and Hematite.
We strongly suggest that you have your ring professionally cleaned by us annually. The Rhodium finish on a white gold ring could also then be checked and re-applied if necessary at a minimal cost.