... material, high quality gum.high luminance,stand scrubbing,clear cut(8-side-cutting,10-side-cutting).The drilling area all ... and JIEKE diomands. The characteristic of cutting is that machine cut the crystal surface. And can give out brilliant glory, ... SIAM,HYACINTH,AMETHYST,SAPPIRE,EMERALD,LT PERIDOT,MONTANA,SIAM,TOPAZ,JET,SMOKED TOPAZ,LT BEACK,CITRINE,LIGHT AMETHYST,PERIDOT,JONQUIL,HEMATITE,AURUM ...