Alexandrite rings are very beautiful. If Alexandrite is set in a ring, the wearer can watch the color change. Alexandrite has a hardness rating of 8.5. Protect alexandrite from scratches, sharp blows, harsh chemicals and extreme temperatures. There are many many synthetic alexandrites on the market.
Natural alexandrite is very rare.
Alexandrite is found in Brazil, Madagascar, Myanmar, Russia, Sri Lanka and Zimbabwe. This book is really great for knowing he latest gems, synthetics, treatments, and instruments. Easy to use. A Guide to Buying - by Renee Newman Very nice gemstone identification book. The definitive book on fascinating, traditional gem lore.