Some of the rarest stones are fancy colored diamonds. Out of every 10,000 naturally produced diamonds, approximately one is considered “fancy colored”. In order to distinguished between natural-color polished diamonds that display color and white diamonds, the Gemological Institute of America coined the term “fancy”. The more saturated in color the fancy diamonds are, the more they increase in value. Unlike white diamonds that are graded using the D-Z scale, fancy colored diamonds are graded based on the degree to which the diamonds are saturated with color. GIA developed a grading scale for fancy color diamonds in the 1970s. Referring to fancy color diamonds is made not by using letters but by the degree of saturation of color in the stone. The color saturation is graded as follows: faint, very light, light, fancy light, fancy, fancy dark, fancy intense, fancy deep or fancy vivid. There are many colors fancy color diamonds can come in such as yellow, pink, orange, blue, pink, red, black, and purple, among others.
Out of all the fancy diamonds, the yellow diamonds or canary diamonds are the most well-known. The many white diamonds that appear yellow and that are listed on the far end (Y-Z) of the standard diamond color scale, are not considered fancy yellow diamonds.
Some of the most alluring fancy diamonds on the market are the pink diamonds. Because they are so rare, pink diamonds are some of the most valuable stones you can buy. They can contain quite a few hues such as very light pink, light pink, fancy light pink, fancy pink, fancy intense pink, fancy vivid pink, fancy deep pink.
After the red diamonds, the fancy green diamonds are the rarest. Because green is a mixture of blue and yellow, green-colored diamonds commonly range in hue from blue-green to yellow-green. Hints of grey or brown can be displayed as well.
The most valuable and amongst some of the rarest colored diamonds are the fancy blue diamonds. They range in color from light to dark blue. The hues it contains are: faint blue, very light blue, light blue, fancy light blue, fancy blue, fancy intense blue, fancy dark blue, fancy deep blue and fancy vivid blue.
Brown, yellow or pink overtones and hues can often be contained in orange diamonds. These kinds of diamonds typically come from the Argyle mine in Australia, or from South Africa. It can be found with the following hues: fancy orange, fancy intense orange, fancy vivid orange, fancy deep orange, and fancy dark orange.
Because of a change in the diamond’s molecular structure, some diamonds are brown and they are called fancy brown diamonds or chocolate diamonds. Those that are light brown are also called champagne diamonds and those that contain orange hues are also called cognac diamonds.
Often they are called Canary Diamonds, as deeper is the yellow the more expensive they become. This is the most requested fancy color.