SDI/'Star Wars' Laser Ruby Loose Faceted Stones, Fancy Cuts Stone:6.27ct Round Cut not the material codoped with

not the material codoped with Cerium

We don't usually sell any kind of glass

Hyperfluorescent LuAG

5 and no major durability issues

SDI/'Star Wars' Laser Ruby Loose Faceted Stones, Fancy Cuts Stone:6.27ct Round Cut not the material codoped withThese are lab created laser rubies grown for use in the Strategic Defense Initiative, aka 'Star Wars' program, in the 1980s. Like all rubies they have a high hardness of 9, great brilliance and glow red under UV. This is the most classic gem produced by science: laser ruby. While material of this color would be called 'pink sapphire' in a gemological context, in laser science all corundum doped with chromium is considered ruby (in contrast to pink