Definition of brilliant cut in US English:

brilliant cut


  • A circular cut for diamonds and other gemstones in the form of two many-faceted pyramids joined at their bases, the upper one truncated near its apex.

    as modifier ‘brilliant-cut diamond ear studs’
    • ‘A popular engagement ring for women is the round diamond brilliant cut.’
    • ‘The Tiffany round brilliant cut is the more traditional choice of the two.’
    • ‘In its center floats a brilliant-cut acrylic diamond with 53 sides.’
    • ‘A brilliant cut diamond pendant, is the elegant prize on offer for the best dressed woman.’
    • ‘Side cut diamonds do not sparkle as much as the brilliant cut diamonds.’