| 摘要 |
An improved round cut gemstone, comprising a girdle, a crown above the girdle, and a pavilion below the girdle, the crown located between the girdle and a substantially flat surface defining a table, the crown having t wo steps including a first step from the girdle to a crown break and a second step from the crown break to the table, the crown including eight first step top corner facets, eight second step top corner facets, eight star facets, and sixteen upper girdle facets, the pavilion having a plurality of bottom facet s and a centrally located culet at the bottom of the pavilion, the pavilion including eight pavilion or lower corner facets, sixteen outside lower girdle facets a nd sixteen lower inside girdle facets.
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