A GEMSTONE is a mineral formed without any human intervention which possesses |
| » beauty or colour |
| » durability or hardness |
| » clarity, lustre or fire |
| » scarcity | |
all of which govern its value. |
Minerals and materials that are equally important to the gemcutter but cannot be classified as gemstones are classified as ORNAMENTAL STONES. |
In the past only about 70 minerals of all the defined minerals have been used as gemstones. |
Synthetic gemstones or minerals, other synthetic products and imitations of gemstones are the largest source of gemstones, but remain of little interest to the gem collector and gemcutter. |