Products name
Starsgem dark blue gemstone heat resistance blue sapphire gemstone
Application
Gold or silver jewelry accessories,decaration
Hardness
7.8-8.5Moh's Scale
Property
Can standing high temperature
Refracting Index
1.75-1.76
Related material
Cubic zirconia,synthetic corundum,natural gemstone and glass beads.
Advantage 1
Strong production capacity
Advantage 2
Safest & fastest shipping