Natural Colored Red Diamonds the Rarest of Gemstones

Natural Colored Red Diamonds the Rarest of Gemstones
Natural Colored Red Diamonds the Rarest of Gemstones

Natural colored red diamonds are rare, but experts say the natural red is the rarest. It is so rare such that the per carat price is about 400 percent higher than the per carat price of other natural colored diamond.

But what is a natural red diamond?

Wikipedia defines red diamonds as which displays red color and exhibits the same mineral properties as colorless diamonds. The color of a diamond becomes red when gliding atoms, during the formation of a diamond, are pressurized. 
However, GIA defines red diamonds as predominantly red -- a diamond that has no secondary hue. With this in mine, experts still don’t know exactly how red diamonds are formed. There remains a mystery and rare.

So why are red diamonds so rare?

To put it context, scientists at GIA, an organization that grades diamonds for the industry with 9 global laboratories, did not grade a diamond “red” between 1957 to 1987 -- a good solid thirty years. 
There are only 20 to 30 natural colored red diamonds that are known to exist, and all are less than 1 carat according Cape Town Diamond Museum.

Even in their sizes, most red diamonds are found in less than 1 carat, but only 5 are known to be greater than 5 carats. The largest so far is 5.11 carats -- the Moussaieff Red Diamond is one of the most famous gemstone. 
Other natural red diamonds in that class are the Hancock Red Diamond, the Rob Red, and the Supreme Purple Star which changes into deep vivid purplish red when rotated in the light.

Red diamonds are very expensive, the per carat price is 300–400 percent higher than the per carat prices of any natural colored diamond.  Nonetheless, if one is considering investing in natural red diamonds, there are prices that match the individual investor. 

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