- จัดส่งทางไปรษณีย์ หรือ บริษัทขนส่ง To Shine a stone, begin by dipping it in h2o ahead of rubbing it all over with 60-grit sandpaper. For the best polish, consistently soaked the stone as you utilize the sandpaper to wear down any sharp edges. Overheated stone – Friction warmth can fracture stones. https://beediadiamond.com/catalog/polishing-stones