Table «Seventy Seven Diamonds

18Feb/100

Diamond Cut Part 2: Crown and Pavilion Angles

In part one of this series we discussed how the Table and Depth Percentage effect the cut of a diamond.

In part of two, we'll take a look at the last two important factors of cut, the crown and pavilion angles, to give you a better idea of what you should be looking for when you purchase a diamond.

The relationship between the crown angle and the pavilion angle has the greatest effect on the appearance of any diamond. A slightly steep pavilion angle can be complemented by a shallower crown angle, and vice versa.

Tagged as: Crown, Cut, Depth, Diamonds, Pavilion, Polish, Symmetry, Table Continue reading

12Feb/104

Diamond Cut Part 1: Table and Depth Percentage

Different aspects of a diamond

The cut of a diamond determines how well the stone reflects light. This reflection is responsible for the gem’s brilliance or overall sparkle. There are many aspects to a stone which contribute to angles and the cut form, as the diagram to the left indicates.

Diameter: The width of the diamond through the girdle.
Table: The largest facet at the top.
Crown: The Top part from the girdle to the table.
Girdle: The narrow band around the widest part.
Pavilion: The bottom part from the girdle to the cutlet.
Culet: The facet at the bottom tip. The preferred cutlet is not visible to the naked eye.
Depth: The height from the cutlet to the table.

Professional and skilled cutters cut the stone to mathematically precise proportions to allow as much light as possible to reflect from each of its mirror-like facets out of the top of the diamond.