How To Clean Pearls That Have Yellowed. Using the toothbrush, lightly brush the pearls to remove dirt and debris. Carefully rinse them is a solution made of warm water and a drip of mild soap.
Don’t be tempted to pop the necklace or bracelet in the water as that might cause the silk thread to stretch and weaken. In china, technicians are secretive about their methods. Remove yellow from white marine pearl.
Stir it well to combine.
Remove the pearls from the soapy water and rinse them in a fresh stream of cold tap water from the faucet. Fill a bowl with water, then pour in some mild detergent like this one to create a sudsy solution. If your pearls are visibly stained, you can mix a solution of lukewarm water and mild dish soap, dip a soft cleaning cloth in it and wipe the pearls. Of mild liquid hand soap with 1 cup of warm water in a small bowl.