Fancy colored diamonds are gaining more and more popularity. It is becoming a new trend in engagement rings and wedding bands, especially as a huge number of celebrities were spotted wearing colored diamonds. People who want to move away from traditional jewelry opt for colored diamonds because of the distinct and unique look they provide. Hence, the market for colored diamonds is becoming more widespread.
When planning to buy colored diamonds, the problem faced by most people is to determine the quality of these stones. For colorless diamonds, there are well-defined standards and guidelines to determine their features and characteristics that most of the people are aware of, including the 4Cs. But when it comes to colored diamonds, most people are oblivious to finding out the value of these stones using the 4Cs and other such parameters. Therefore, we list some guidelines for helping you to evaluate the quality of colored diamonds, so that it will be easy for you to select a diamond if you are planning to buy one.
Diamonds come in a variety of colors including yellow, brown, pink, purple, orange, blue, black, etc. The value of these diamonds varies based on their rarity. Colored diamonds are usually extremely rare. It is estimated that there is only one colored diamond out of ten thousand diamonds. This fact alone shows how rare colored diamonds are. Hence, they also have great value.
Grading the Color
Yellow and brown are considered to be the most common colors in fancy colored diamonds. Usually, even the diamonds that are considered to be colorless can have a slight hue of yellow or brown in them. Stones that have any other colors apart from these colored are considered to be very rare, hence, they will have more value. Diamonds that have hues of colors like red, blue and green are comparatively rare. Therefore, stones that have even slight hues of these colors will have great value.
The process of grading fancy colored diamonds is very complex. It requires highly trained and experienced professionals to complete this procedure efficiently. When determining the value of diamonds, labs like GIA consider the fact that all colors will not have the same depth of color, for instance, the yellow diamonds are available in a wide range of saturations, whereas, blue or red color diamonds are not.
Rarity of Colors
Red or reddish colored diamonds are extremely rare and have great value. More people prefer pure pinks over orangy, purplish, grayish, or brownish colors. Jewelers market attractive diamonds in this category as “rose-colored”, and those with purplish hues as “mauve” diamonds.
Blue diamonds are also very rare and they usually have a slight gray shade in them, hence, they are as rare as blue sapphires. These diamonds get their color from the boron impurities present in them. The color saturation will be based on the amount of boron present in them.
Fancy green diamonds are usually found in low saturation and light tones and the hue will be normally found on the surface only. Hence the diamond cutters will try to leave maximum natural rough stone near the girdle. Natural green diamonds are very rare, so it is possible that many green diamonds are created through artificial treatments. Therefore, green diamonds are often seen with suspicion, and they will be examined thoroughly in gemological labs.
Brown diamond is the commonly found color in the colored diamonds. They appear in a wide range of saturation from very light to extremely dark. Yellow is the second most common color. They are also found in a variety of shades like brown diamonds.
Black diamonds are another category in colored diamonds. Even though they were not very popular in the past, they are now gaining more and more popularity.
Fancy white diamonds are also present and they will have a milky-white appearance. You can also find grey diamonds. It is believed that grey diamonds get their color from the presence of hydrogen impurities.
Grading the Clarity
For fancy colored diamonds, color is considered to be the dominant factor. In some cases, many diamonds are given great value because of their vivid color, even though they have many inclusions. However, in some other cases, inclusions can reduce the value of diamonds significantly.
Grading the Diamond Cut Quality
Two aspects of diamond cut quality that can affect the color of fancy colored diamonds include shape and size. If the diamond is larger or if its pavilion is deeper, then more light can travel through these stones. Hence, the color will appear more intense and richer.
Diamond cutters normally use cuts such as radiant for intensifying the color of these diamonds and thereby improving the diamond cut quality. Another advantage of this cutting style is that it can give more yield than cutting a round brilliant diamond. Different diamond cut shapes have evolved over time for bringing out the color of these stones to the maximum extent.