Diamond jewelry has a gold or platinum location. You need to use a bowl of warm h2o, a drop of dish soap, and also a child's toothbrush to wash it. น้ำยาประเภทเคลือบเงาใช้กับเครื่องขัดพื้น This isn’t a lasting way to polish them, however, as the shine will only last for the several weeks. https://beediadiamond.com/catalog/polishing-stones