원석 모양
Uncut rough material
Products name
Starsgem rough uncut ruby synthetic corundum stone 5# ruby rough
Application
Cut ruby stone
Hardness
7.8-8.5Moh's Scale
Property
Can standing high temperature
Refracting Index
1.75-1.76
Related material
synthetic corundum,spinel
Advantage 1
Strong production capacity
Advantage 2
Safest & fastest shipping