Definition of peridot in US English:



  • A green semi-precious mineral, a variety of olivine.

    • ‘If you are a family of 3, this necklace is a row of three diamonds, with the main stone peridot, in case you want some number symbolism.’
    • ‘Plutonites, also magmatic, form in conditions of extreme heat and pressure far deeper within the Earth; colourful translucent crystals such as aventurine, peridot and rose quartz are the result.’
    • ‘Some gem minerals have crystallized directly from igneous rocks other than granite; peridot is a good example.’
    • ‘Egypt is also the home of some of the best peridot, the gem variety of forsterite.’
    • ‘There are bracelets, earrings, pendants, and so on, set with rubies, emeralds, sapphires, and other gemstones such as tanzanite, tourmaline, aquamarine, yellow topaz, rose quartz, peridot, and many more.’


Early 18th century: from French, from Old French peritot, of unknown origin.