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English definition of “diamond”

diamond

noun (STONE)    /ˈdaɪə.mənd/
B2 [C or U] a transparent, extremely hard precious stone that is used in jewellery, and in industry for cutting hard things: The tiara was set with diamonds and rubies. a diamond ring/necklace He had worked in the diamond mines of South Africa. diamond-tipped saw bladesPrecious and semi-precious stonesTypes of rock diamonds [plural noun] jewellery made from diamonds: Shall I wear the diamonds or the pearls with this dress?Jewellery
(Definition of diamond noun (STONE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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