Why diamond is so expensive?

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Tags

1. #expensive
2. #found
3. #precious
4. #generally
5. #based
6. #stone
7. #common
8. #weight
9. #rarity
10. #diamonds
11. #compared
12. #because
13. #rarer
14. #gemstone
15. #gemstones
16. #other
17. #particularly
18. #carat