Rarity in terms of precious stones like diamonds is usually based mostly on color, clarity, and carat weight. Many people are surprised to know diamonds come in all sorts of colors including yellow, green, blue, champagne, red, pink, green, blue, brown, black, and regular white. The availability of a particular color and how it looks when it is cut goes a long way in determining its value and plays a large role in determining some of the Rarest Diamond pieces in the world.

The Rarest Diamond in the world in regards to its color and clarity is one known as The Ocean Dream Diamond. It is a smaller diamond, weighing only 5.51 carats, but the color is one that has never been seen anywhere else before- a deep beautiful blue-green. The rarest diamond in terms of its size is The Cullinan Diamond. This massive diamond chunk originally hit a staggering 3106.75 carats. That behemoth diamond was then cut into 9 large chunks, 96 small ones, and 9.5 carats of rough unpolished pieces. These stones were then used for the various British Crown jewels. The Cullinan is a common white color.

Other entrants for the Rarest Diamond pieces include:

• The Earth Star (is a large diamond of a rare share of deep reddish-brown)
• The Blue Heart (30.82 carats, deep blue)
• The Centenary Diamond (599 carats, white diamond that is flawless in clarity)
• The Golden Eye Diamond (originally 124.5 carats , cut to 43.51 carats, and is a flawless, Canary yellow color)
• The Koh-i-noor (Over 5000 year old white diamond)
• Spirit of de Grisogono (312.24 carats – originally at 587 carats, black in color)
• The Hope Diamond (Famous cursed diamond, fancy deep blue huge)
• The Golden Jubilee (755.5 carats rough and 545.67 carats polished, rich yellow brown)

Recent changes in jewelry markets have begun to take notice of the other shades of diamonds and they are becoming more and more desirable and coveted. Shades of red, orange, yellow, and brown are growing in popularity at a rapid pace and the deeper shades of blues and greens have also been popular for several years now. These changes in opinion on diamond colors are helping to make the Rarest Diamond options out there different than they were a few years ago. 

Diamonds and more Diamonds

Though white diamonds are indeed the most common color seen in jewelry and on the market, it is actually brown and yellow diamonds that are the most commonly found in nature. The interested in rare colors has lead some gemstone dealers to begin treating diamonds in order to induce new and unique colors and more intense huge- but all treated diamonds must be clearly labeled as such and are not as valuable as the naturally occurring colored stones. The Rarest Diamond in the world can be one of the most brilliantly colored or one of the largest- and who knows what diamonds are still waiting to be discovered!