品牌
Hanyu jewelry,hanyu glass stone
宝石重量
According to the size
Name
natural loose black diamonds Round stone glass ball wholesalers
Melting point of gemstone
600-800℃
Refractive index of glass
1.52
Mohs scale of hardness
5-6
Glass stock
Small loose glass ball are in stock
Application
Decoration, bracelet, watch, jewelry