Alexandrite is the rare, phenomenal, color-change variety of the chrysoberyl mineral, along with its cousins yellowish transparent chrysoberyl and chatoyant or cat's-eye chrysoberyl. The unlikelihood of the rare element chromium being in the right place to combine with aluminum and beryllium under exactly the right conditions to create alexandrite is what makes it so rare and valuable.
Trustpilot
2 weeks ago
2 months ago