High yield diamond
US6615611B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Sep 26, 2000 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Sep 26, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA44C17/001
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A high yield diamond and method of producing same. The diamond includes a plurality of main crown facets adjacent a table lying at an angle of between 23° and 40° relative to the table, a girdle, a plurality of upper pavilion facets below the girdle lying at an angle of between 45° and 80° relative to the girdle plane, and a plurality of lower pavilion facets formed between the upper pavilion facets and the culet. The upper pavilion facets extend from between one fifth to four fifths the height of the pavilion. The method is directed to a process for blocking the pavilion of the diamond prior to performing any brillianteering steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.