Gemstone (noun)

A precious or semi-precious stone, especially when cut and polished for use in jewelry.

Origin:

The word gemstone is derived from the middle english word "gemme" meaning "precious stone" and "stone" meaning "a concretion of earthy or mineral matter".

Examples:

1. The ring was set with a large gemstone.
2. Gemstones are often used in high-end jewelry.
3. The gemstone's value is determined by its color and clarity.
4. Ruby is a popular gemstone for engagement rings.
5. Gemstones can be found in many different colors and varieties.