Jewel meaning : A precious or semi-precious stone; gem, gemstone. A valuable object used for personal ornamentation, especially one made of precious metals and stones; a piece of jewellery. Anything precious or valuable. A bearing for a pivot in a watch, formed of a crystal or precious stone. Any of various lycaenid butterflies of the genus Hypochrysops. The clitoris. To bejewel; to decorate or bedeck with jewels or gems.