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Diamond Cut

The cut of a diamond determines its sparkle.

The cut of a diamond refers to the shape of the stone and its dimensions, angles, symmetry, faceting and polish. It takes a master craftsperson to release the maximum brilliance, fire and sparkle of the diamond.  The highest standard Cut for a diamond is an “Ideal Cut”.  A diamond achieves this rating based on light performance, finish and proportions.

Facets are the polished, flat surfaces on a diamond.  The arrangement of the facets gives a diamond its brilliance.

The Gemological Institute of America (GIA) classifies diamond cuts in three basic categories, brilliant cut, step cut and mixed cut.  Brilliant cut is the most popular faceting pattern resulting in the brilliance diamonds are traditionally known for.

Step Cut consists of the facets arranged in a series of steps which produces a more subdued brilliance to the diamond.

The Mixed Cut was developed in 1960 and accentuates a diamonds fire and brilliance rather than luster.

What shapes do diamonds come in?

Diamonds can be cut into any shape imaginable – however there are some common shapes for rings.

Diamond Cuts
  • Emerald
  • Pear
  • Princess
  • Trillion
  • Round
  • Marquise
  • Oval
  • Heart
Well Cut
  • Well
Deep & Shallow Cut
  • Deep
  • Shallow
To Deep & Too Shallow
  • Too Deep
  • Too Shallow