You are gone be a very happy person if you have the chance to buy this unique piece of alexandrite from Africa . Please take a good looking at the photos.What you see is exactly what you get. The dimensions are 28mm x17mm X 16mm .Perfect size for a pendant or make a ring. Color change from deep green to deep red under yellow light ,not treatmentat all .It comes in a display acrylic box ,if you are a collector. Please do not hesitate to ask any questions .