Types of Gemstones:
1. Emerald, green in colour
2. Ruby, red in colour
3. Topaz, yellow in colour
4. Diamond, colourless stone
5. Amber, orange in colour
6. Sapphire, blue in colour
7. Amethyst, purple in colour
8. Onyx, black in colour
9. Jade, dark green in colour
10. Pearl