Are blue zircons valuable?

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Tags

1. #honey
2. #tends
3. #color
4. #expensive
5. #blues
6. #zircon
7. #carat
8. #golden
9. #while
10. #carats
11. #typically
12. #saturated
13. #known
14. #quality
15. #sizes
16. #africa
17. #stones