The top portion of the diamond, from the girdle to the table.
The lower portion of a diamond, from the girdle to the culet.
The facet or point on the bottom of the diamond's pavilion.
The narrow rim around the widest part of a diamond, separating the crown from the pavilion. Also referred to as the setting edge, where a diamond is held when set in jewelry.
The height of a gemstone, from the culet to the table. Determined as a percentage of the overall diameter of the gem.