Plural of brilliant: diamonds or other gems cut with the brilliant faceting pattern that maximizes sparkle and light reflection.
From 'brilliant,' which comes from Latin 'berillus' (beryl gemstone). The 'brilliant' cut was developed to create diamonds with maximum sparkle.
The brilliant cut was a game-changer in jewelry—it used mathematics and physics to bounce light around inside a diamond in a way that made it sparkle 10 times more dramatically than older cutting methods.
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