| 摘要 |
<p>A mixed cut gemstone having a brilliant cut crown (12), a girdle (50) and a step cut pavilion (40). The step cut pavilion (40) contains four rib lines (32) running from the girdle (50) to a culet (31), which can be a line or a point. The rib lines (32) subdivide the pavilion (40) into four sides, which if the girdle (50) is shaped like a square, are equivalent, and, if the girdle (50) is shaped like a rectangle, then any two opposing sides are equivalent. The pavilion (40) contains a multitude of steps (36), which add to an elegant and classic look of the gemstone. The crown (12) contains a flat table (13) in a form of a diamond, four corner facets (15) and four upper girdle facets (17), thus, creating superior factors of dispersion, brilliance and scintillation. The table (13) is slightly elevated due to the angles that the four corner facets (15) and four upper girdle facets (16) form with the girdle (50).</p> |
