FIELD: process engineering.
SUBSTANCE: invention is intended for used in production of jewelry. Proposed method consists in that the angle between opposite faces is made equal to 77°. Note here that faceting features the following parameters: diamond diameter D, total height H=0.76 D, site size d=0.67 D, girdle thickness r=0.08 D, height of top with girdle h1=0.11 D, height of bottom to girdle h2=0.65 D, height of bottom face twist h3=0.42 D, top inclination to girdle plane 10°, bottom inclination to girdle plane: ahead of twist 51.5°, behind twist 55°.
EFFECT: fivefold internal reflection of light rays and increased dispersion.
1 dwg
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