FIELD: jewelry industry, in particular, diamond faceting.
SUBSTANCE: diamond is made in the form of rectangle with beveled angles and has side faces to be polished. Angles of inclination to rundist plane of crown main faces are 30 deg, of crown paired wedges - 34 deg, of rundist faces - 90 deg, of pavilion main faces - 39 deg, of pavilion wedges - 50 deg, of paired wedges - 45 deg, of angular paired wedges - 41 deg. Diameter of platform is 64%, height of crown is 15%, height of rundist is 2%, depth of pavilion is 43%, total height is 60% of rundist diameter.
EFFECT: reduced labor intensity for stone faceting and increased efficiency in utilization of rough diamonds.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| BRILLIANT | 1993 |
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