Color is another topic of contention. “Colorless” diamonds in the D, E, and F categories are the most expensive, but individual taste will dictate just how far down the alphabet you want to go. The color scale goes from D to Z, D being completely colorless and Z being very yellow. A Z diamond, however, should not be confused with a “fancy yellow” or “canary” diamond, which is an entirely different grade of natural yellow diamonds that are also very desirable.

The clarity of a diamond can also be a topic of debate. Purists will strive for perfection and put an emphasis on the clarity, or lack of inclusions, within the diamond. Others feel that these invisible-to-the-eye imperfections are like a birthmark or mole, and these individual character marks should be embraced.

Lastly, many individuals favor brilliance over all others, which is mostly the result of a fine cut. The amount of sparkle, fire, and brilliance demonstrated by the diamond as it interacts with the ambient light is a very desirable trait for a diamond. Quite frankly, it’s what makes a diamond unique from all other gemstones!

Carat weight is a huge driving force with regard to price because there are simply not as many large diamonds in the world. Thus, an increase in carat weight will result in a direct increase in price.