Pure Er:YAG Rough, Erbium Color-Change Garnet Stone:Edge, 12.5×11.8×10.7mm, 5.02g and they would also be

and they would also be good for cutting exceptionally large round cuts

We only managed to get a limited amount but we're going to do everything we can to secure a steady supply

This stone has a few bubbles and needles

The blue also gets more vivid--the frosted faces make it look greyer than it is

The peach rod came to us labeled Nd:YAG but it is definitely glass

Pure Er:YAG Rough, Erbium Color-Change Garnet Stone:Edge, 12.5×11.8×10.7mm, 5.02g and they would also beThese are facet rough of erbium doped YAG, a lab grown garnet used in lasers for both medicine and industry. Erbium YAG has a very obvious color change between different light sources. Under sunlight and cool LEDs it's a nice orange, but it shifts easily, changing color between Cool LEDs (orange), Warm LEDs (yellow), CFL (strawberry pink), and OLED (magenta) as well as under fluorescent lighting and OLED illumination. Sunlight shows an orangeish pink.