DIAMOND INFORMATION CENTER
Helpful information for members of the public looking to sell diamonds & diamond jewelry
The make of a diamond refers to its overall dimensions and structural appeal. Make is broken down into three gradable categories: Cut, Proportions and Finish. All three are rated on a scale of Excellent to Poor. It is usually only when a diamond falls into the high or low extremes of the cut scale that its value is impacted significantly. For example a diamond with triple excellent cut grades is considered ideal and highly sale-able. Contrarily, when one of a diamond’s make grades is poor, it can be very detrimental to its value and marketability. Even a “D” color flawless diamond will suffer a significant value decrease if it has a poor make. It is very important not to overlook this factor when determining the value of your diamond.
Cut refers to how the proportions of a diamond affect its overall appearance and quality.
Proportions Refer to a polished diamond’s dimensions, facet angles and the relationship between them. Ideal proportions will result in a brilliant and sparkling diamond. Incorrect proportions can have a negative effect on the appearance of the diamond.
Finish refers to the quality of a diamond’s polish (the overall condition or smoothness of its surface), and its symmetry (exactness of its outline, and the shape, placement, and alignment of its facets).
How can you determine your diamond's make?
Make is listed on a diamond's gemological certificate. While some aspects of a diamond's make are fairly recognizable, such as its level of brilliance, it would be virtually impossible for you to accurately interpret the make of an un-certified diamond yourself. The only way to determine the make of an un-certified diamond is to have it looked at by a gemologist.
When I bought my diamond, I was told it had a special designer cut by the retail store. Does this increase its value?
Branding of a particular cut is a form of marketing conducted by some of the larger retail stores. These brand name cuts do not add to the value of your diamond in the resale market. The only truly recognized cut grades are those administered by the Gemological Institute of America (GIA).
Can my diamond's make be affected by wear?
Diamonds can chip or even break. While breaks are rare, a diamond can be chipped when banged. Chips are common in diamond shapes with sharp corners (Princess, Pear, Heart, Marquise, etc...). While a chip is usually fixable, it will result in the diamond losing some of its weight during the re-cutting process.
Can I have my diamond re-cut to achieve a better make?
Modern diamonds are almost always cut in a way which maximizes their value. While it may be possible to achieve a better make through re-cutting, the original cutter almost certainly considered this and determined that the added value of a better make would be outweighed by the loss of value from losing carat weight, (During the re-cutting process).