The 10 Most Expensive Crystals in the World

10. The Royal One Black Opal

9. Tanzanite

8. Arkansas Quartz

7. The Whitney Alexandrite

6. The Enigma Diamond

5. The Rockefeller Emerald

4. The Hutton-Mdivani Jadeite

3. The Sunrise Ruby

2. The De Beers Cullinan Blue Diamond

1. The CTF Pink Star Diamond

10 Most Valuable Wheat Penny Errors In Circulation