Our Large Glass Gem is approximately 1" wide, and Flat-Backed. We have different colors and finishes available.
Iridized or Iridescent - also known as the Opalescent effect, is the property of being colored like a rainbow. The effect is similar to sun reflecting off oil in water; an array of colors, a shinier, more reflective gem.
Non-Iridized - is simply the color, with no sparkling array of colors, non-noticeable in different angles of light.