A gemstone is a piece of mineral crystal or rock used to make jewelry or other adornments.

Gemstone or gemstones may also refer to:

• Gemstone (database), or GemStone/S, commercial software by GemStone Systems

• GemStone IV, GemStone III and GemStone II, multiplayer online role-playing video games

• Gemstone Publishing, an American company

• Gemstones (album) by Adam Green, 2005

• Gemstones (rapper) (Demarco Lamonte Castle, born 1981)

• Operation Gemstone, a planned series of clandestine acts leading to the Watergate burglary

See also

• Gem (disambiguation)

• Gems (disambiguation)