BRILLIANT Russian patent published in 1999 - IPC

FIELD: jewelry. SUBSTANCE: brilliant has corona, rundist and pavilion. Corona has pad, main faces, pad wedges and paired quadrangles of corona. Pavilion has main faces and paired quadrangles. Inclination angle of corona main faces is 12.0 plus and minus 1 deg and inclination angle of paired quadrangles of corona is 54.74 plus and minus 1 deg. Inclination angle of main faces of pavilion is 42.5 plus and minus 1 deg and inclination angle of paired quadrangles of pavilion is 47.5 plus and minus 1 deg. Diameter of pad is 40.0 plus and minus 2%, height of corona is 15.9 plus and minus 2%, height of pavilion is 48.1 plus and minus 2% and height of rundist does not exceed 2.0% of diameter of rundist. EFFECT: increased decorative effect. 4 dwg