Are you hoping to purchase an engagement ring in the near future or do you wish to have a piece of diamond jewelry appraised? If so, appreciating how the value of one of these precious stones is determined is always critical. There are four primary characteristics which will be examined by a professional:
- Color
- Clarity
- Carat
- Cut
While many individuals tend to believe that the value of a diamond is determined by its size, this is actually not true. The clarity and cut are often some of the most important determining factors. Let’s take a look at how the shape (cut) of the stone will impact its price.

Why is the Cut so Critical?
One of the reasons why diamonds are such attractive stones arises from their natural ability to reflect light. This is the reason why diamonds sparkle, unlike any other precious gem. The cut is crucial, as the facets of the stone will unlock its potential to reflect light in such a manner. Even stones with pristine clarity will not be able to “shine” if they have been improperly cut. This is why it takes years for a professional to master the process.
How is the Cut of a Diamond Determined?
A Diamond specialist is first presented with a stone in its rough (natural) form. The type of cut will depend upon its size, shape, and the presence of any imperfections (known as inclusions). The main point is to cut the diamond in such a manner as to maximize its size while also best displaying its unique visual characteristics. Once again, this takes a great deal of skill and experience.
What Types of Cuts are the Most Common?

There are several ways in which a diamond can be cut and each shape provides truly stunning results. Here are a handful of the most well-known styles:
- Round brilliant cut
- Princess cut
- Marquise cut
- Cushion cut
- Emerald cut
- Pear and oval cuts
However, one cut, in particular, is considered to be the rarest and most beautiful. This is known as an “ideal cut”. These diamonds normally exhibit a round brilliant or a princess configuration. However, their dimensions have been manipulated in such a way as to reflect nearly all of the light that enters. This is why they are truly radiant to behold. Such diamonds are therefore quite expensive. Those who wish to learn more should refer to an ideal cut diamonds guide here on Pricescope diamond forum, as a wealth of independent information can be found to help you with your choice.

Finally, it is always wise to have a professional from the Gemological Institute of America (GIA) or the American Gem Society (AGS) evaluate your diamond. Not only do these individuals boast a wealth of expertise, but their grading system is recognized throughout the industry. As always, feel free to refer to this article for guidance or inspiration in the future.