Colored diamonds are the rarest in the world and They are known as fancy diamonds.. This type of diamond usually has impurities that in its structure and the colors that it has absorbed are trapped inside.
One of the rarest diamonds is the one that has the colors of the rainbow and is differentiated from the rest by the intensity of the color, as well as by the tone or saturation of it. Colored diamonds are so rare that only one in ten thousand diamonds is mined.
The red diamond, known as the Holy Grail is one of the rarest and its value is inestimable. The most famous among red diamonds are the Moussaieff Red Diamond and the Hancock Red Diamond.
Violet diamonds have been found in Australia and Russia. It is also called purple diamond for its secondary hue. It is very rare and its price can exceed 300,000 US dollars per carat.
One of the most famous colored diamonds is blue and one of the characteristics of this diamond is that it absorbs all wavelengths of light, except blue. Due to its high demand, its price has increased in recent years, reaching over 350,000 US dollars per carat. The most famous are the Hope Diamond and the Wittelsbach Diamond.
In 1743, a green diamond was discovered in India, called the Green Diamond of Dresden. This beautiful gem can fetch over US$300,000 per carat.
The pink diamond is one of the most coveted and have been mined in Australia. Being such a rare gem, the price in US dollars can reach one million US dollars per carat. Among the most famous pink diamonds are the Steinmetz Rose, Martian Pink, Pink Graff.
Orange diamond deposits have been found in South Africa. Although lower in value than other colored diamonds, it is priced at over $150,000 per carat.
The yellow diamond is one of the rarest on the planet. Among the most famous yellow diamonds are the Sun Drop, the Tiffany Yellow Diamond and the Golden Jubilée.
For its part, the black diamond has been found in South African mining deposits, as well as in the Central African Republic. The first to use a black diamond in jewelry was the Swiss jeweler De Grisogono and he popularized it. Its price per carat is over 200,000 US dollars. The best known are the Spirit of De Grisogono set in a beautiful ring, the Black Diamond Tablet Islam and the Black Orloff.
Other colors of diamonds that have been found in various mines are those of «tan», also known as cognac, chocolate or champagne. They are common in the Ivory Coast, in Angola and in Australia. The price of these diamonds exceeds 3,500 US dollars per carat. For its part, the gray diamond is not common in the markets, and is priced at 7,500 US dollars per carat.