Natural fancy color diamonds are rare, beautiful and extremely valuable. In fact, they are some of the rarest and most highly valued diamonds in the world, since they fall outside the usual color range for diamonds.
Only about 1 out of every 10,000 diamonds is considered a fancy color diamond, according to the Gemological Institute of America (GIA), and only a handful of those receive the top grades of Intense and Vivid. The strength of a fancy diamond’s color is one of the most important factors in determining its value — the more vivid the color, the more valuable the stone.
Colored diamonds have always intrigued our in-house diamond cutter and expert, Andre Vorster. “One thing that fascinates me is that nitrogen, the same element that makes a diamond yellow, can also make it pink,” he says. “Very mystifying.”
Let’s take a look at a few of the different kinds of stunning natural fancy colored diamonds and learn how they’re made.
Pink diamonds range in color from delicate pastel pink to deep raspberry and evoke a sense of romance and luxury. These extremely rare diamonds have long been beloved by celebrities and are revered by collectors and connoisseurs.
Pink diamonds have only been found in a few mines across the world. According to the Argyle Diamond Mine, a pink diamond can cost 20 times the price of its white equivalent. Adding to the intrigue and desirability of pink diamonds is the fact that there is limited gemological information about them.
Distinctive blue diamonds are considered extremely rare. The most famous blue diamond in history is the Hope Diamond, a 45.52-carat, cushion-cut diamond which hangs on a pendant surrounded by 16 white pear and cushion cut diamonds. The necklace chain contains 45 white diamonds. It is estimated to be worth anywhere from $200-250 million.
Blue diamonds typically get their color from the presence of boron in the earth. The bonding of boron to carbon causes the diamond to absorb red, yellow and green light, which produces a blue color.
Yellow diamonds make up about 70 percent of all natural color diamonds graded by GIA each year. Their brilliant, dramatic glow makes them a red carpet favorite among celebrities. The Allnatt, a 101-carat cushion cut fancy vivid yellow diamond, is perhaps the most significant yellow diamond in history.
Yellow diamonds get their color due to the presence of nitrogen atoms, which absorb blue light and produce a yellow color.
Green diamonds are extremely rare — only a handful of natural green diamonds are put on the market each year, making them some of the most sought-after of all natural color diamonds.
Unique among natural color diamonds, green diamonds get their color from naturally occurring radiation in the ground. This radiation pushes into the diamond, causing them to absorb red and yellow light and produce a green color.
Known for their endless range of shades, brown diamonds are the most common colored diamonds and therefore the most affordable.
Brown diamonds are produced when heat and pressure deep within the earth cause the diamond’s crystal lattice to distort. These distortions cause brown diamonds to absorb blue light and impart a brown color.
To view a stunning selection of natural fancy color diamond jewelry, visit Eiseman Jewels at NorthPark Center in Dallas.