I would like to know where I can get a rough / uncut stone certified that it is alexandrite. We have in our possession a large piece that we would like to sell to potential collectors.
Chrysoberyl found in the Ilakaka deposit include vivid yellow-green and of the cat's eye variety and small quantities of alexandrite with a very good color change. Occasional large alexandrite crystals of gem quality were recovered in Lake Alaotra.