The Top 10 Hard Gemstones

A gemstone or gem (also called a precious or semi-precious stone, or jewel) is a piece of mineral, which, in cut and polished form, is used to make jewelry or other adornments.below the list are The Top 10 Hard Gemstones..

1. Diamond

2. Sapphire

3. Ruby

4. Emerald

5. Alexandrite

6. Topaz

7. Spinel

8. Zircon (CZ)

9. Garnet

10.Aquamarine