There is only one place to buy jewelry made from the heather plant and that is from the Heathergems Factory in Pitlockry, Perthshire, Scotland, UK. The making of the gems is a cool process. First the roots of the heather plant are gathered and cleaned, then they are cut and dyed different colors from local, natural dyes and then they are bound tightly. Over time they roots compressed into a single multicolored piece which can then be cut and shaped like stone. Once shaped, the gem is shellacked and mounted for jewelry.

http://www.heathergems.com/