Definition of Gem

Noun: gem jem

A precious or semiprecious stone incorporated into a piece of jewellery
- jewel, precious stone
Art highly prized for its beauty or perfection
- treasure
A crystalline rock that can be cut and polished for jewellery
"he had the gem set in a ring for his wife";
- gemstone, stone
A brilliant or much-loved who is valued
- jewel, pearl, treasure
[N. Amer] A sweet quick bread baked in a cup-shaped pan
- muffin
A small but valuable piece of information or advice
"gems of wisdom";
- nugget, pearl