| 摘要 |
A gemstone (200) includes a pavilion portion (230), a crown portion (220) and a girdle portion (240) provided between the pavilion portion (230) and the crown portion (220). The crown portion (220) includes a plurality of facets provided on a surface thereof. The crown portion can have eight longitudinal sections (310,320) which collectively define it. At least one the longitudinal sections includes a predetermined number of particular facets of the plurality of facets. Each of the particular facets has at least one edge that borders the girdle portion (240). A single facet of the particular facets is formed from cutting at least portions of at least two further facets of the particular facets. The gemstone can also be subdivided into two longitudinal half sections, with the crown portion (220) of which having 12 facets that border the girdle portion of the longitudinal half section. |
