Erbium Laser Garnet Pendants in Sterling Silver (YAG:Er Jewelry) cutkit1 We can't be 1000% certain

We can't be 1000% certain of the provenance because it wasn't specifically labeled as government material but it was labeled as laser ruby and is from exactly the right time so I would call it 99% certain

We were able to get some leftover offcuts from a laser crystal grower--these were not produced for the gem trade but they make for incredible gems

It also has a single stray saw mark that should come out in preforming

The Big One is a segment of a 1m long laser rod with one polished

This material is trichroic (meaning it shows three different colors depending on the direction you look through the stone

Erbium Laser Garnet Pendants in Sterling Silver (YAG:Er Jewelry) cutkit1 We can't be 1000% certainThese are faceted Er: YAG (Yttrium Aluminum Garnet) Pendants in 925 Sterling Silver Used in lasers, Erbium YAG has a very strong color change, and will go from orange to pink depending on lighting. Depending on the lightbulb type (even changing between different LEDs), or when illuminated by computer monitors or phone screens, the gem keeps shifting. It's easily visible under real world lighting conditions so the stones look different throughout your