Carat is the measure of how much a diamond weigh. Carat is also related to size (how big a diamond looks), although it’s not the only factor that determines size. Depending on the shape, weight distribution and cut quality, two diamonds with the same carat weight can be of different sizes. It’s worth noting that some diamonds are cut solely with an emphasis on weight. These gems can sacrifice brilliance and symmetry in favor of delivering a larger carat figure.

Clarity refers to a diamond’s natural inclusions. While small marks within a diamond are natural, their appearance can leave something to be desired if they are visible to the unaided eye. The shape of a diamond can affects the importance of its clarity grade. The facet patterns of the brilliant-cut diamond shapes such as round and princess can hide certain imperfections, but step-cut shapes such as emerald and Asscher have large, open tables that make inclusions more obvious.

Understanding what diamond color means helps in choosing the right diamond. Interestingly, the diamond color evaluation of most gem-quality diamonds is based on the absence of color. A chemically pure and structurally perfect diamond has no hue, like a drop of pure water, and consequently, a higher value. D to Z diamond color grading system measures the degree of colorlessness by comparing a stone under controlled lighting and precise viewing conditions to master stones of established color value. Many of these diamond color distinctions are so subtle that they are invisible to the untrained eye; however, these distinctions make a very big difference in diamond quality and price.

The term diamond cut refers to the quality of a diamond’s proportions and symmetry. These elements determine how much light a diamond captures and reflects, and therefore how much it sparkles. This is a direct result of the skill of the craftsman who shaped and cut the diamond. There are Five grades of diamond cut: Ideal, Excellent, Very Good, Good, and Poor. If you compare two diamonds of different cuts grades, you will see that the higher cut grade has significantly more sparkle. There will also be a difference in their prices, with the better cut grade commanding a higher price.