Most natural Prasiolite comes from one small mine in the northern Brazilian state of Minas Gerais.  The color is caused by naturally occurring radiation over millions of years. It is often referred to a Mint Green Quartz.  We purchased quite a few crystals from the mine and faceted one of them into this 19x15mm oval gemstone.  It is set in a 14kt White Gold Pendant
 
For this Pendant, we recommend a 20” or 24” Medium Figaro 14kt White Gold Chain, # 1021.
 
Please be aware that the items in our photos are often much larger than actual. This is done intentionally to give you a closeup view.