carnelian, tiger's eye, turquoise, onyx, MOP, all those stones are not to be dunked in water. You need to call VCA. Don't fool around with these type of stones, you can easily ruin the jewelry in the alhambra setting. Diamonds are okay, but I don't think it's advisable to put them in an ultrasonic cleaner, because you have little beads around the diamonds and you may knock the diamond out of it's setting after a few times. It's best you ask VCA how to clean these. The YG and diamonds can be easily cleaned with a polishing cloth. WG cannot be polished due to the rhodium plating. YG and diamonds are easy to clean with professional red rouge or other polishes. Or you can simply buy a professional polishing cloth. The alhambra settings are very delicate. All stones that are like a rock (turquoise/tiger's eye/Malachite, etc. ) these are not hard core diamonds. THey are porous stones and can be ruined easily.