What makes a sapphire a sapphire?

Related questions

1. Are blue sapphires cheaper than diamonds?
2. Can Sapphire be worn by anyone?
3. What are the side effects of blue sapphire?
4. What are the benefits of blue sapphire?
5. Can you wear sapphire everyday?
6. Are sapphires common?
7. What are the benefits of wearing blue sapphire?
8. Can Aries wear blue sapphire?
9. What a sapphire means?
10. Are dark blue sapphires more valuable?

Tags

1. #corundum
2. #sapphires
3. #other
4. #brilliant
5. #crystals
6. #gemstone
7. #gemstones
8. #called
9. #harder
10. #intense
11. #quality
12. #while
13. #sapphire
14. #addition
15. #mineral
16. #diamonds
17. #titanium
18. #color
19. #these
20. #caused
21. #rubies
22. #among
23. #varieties