Pink diamond are the rarest diamonds of all colored diamonds. It is estimated that only one diamond in 100,000 mined can be classified as pink in color.
And only a handful of these can be classified as Fancy Intense or Fancy Vivid. This and the enthusiasm of collectors and celebrities for pink stone explains why the prices of diamonds have recently soared to break all records at auctions.
Intense pink colored rough diamond mined from the Argyle Mine in Australia.
Shades of color in pink diamond :
The color of a diamond can vary in intensity, greatly influencing the value of the stone. The more pronounced the pink color, the more expensive the stone will be. In the case of diamonds, color is the most important criterion influencing the price thereof, more important in particular than the estimate of its degree of purity.
Photo showing the diamond color intensity scale ( photo source ).
Of course, the color pink can also vary in shade, varying from purple to brown and orange, so that the range of colors taken by pink diamond is very large as shown in this view:
A color with mysterious origins :
It will surprise you, but scientists are not yet sure whether they fully understand the origin of the color of diamonds. If the blue diamond obtains its color from the Boron atoms present in its atomic structure, the diamond seems to obtain its color from the constraints imposed on its atomic structure during the formation of the crystal.
It is the extreme temperature and pressure conditions of its environment which induce plastic deformations in the carbon crystal, causing the absorption of certain wavelengths, and therefore influencing the color of the light transmitted by the diamond.
The conditions required for its formation are so rare that diamond mines allowing the discovery of diamonds are extremely rare. In fact, 90% of the world’s production of diamonds comes from the Argyle mine located in Australia.
Australian Argyle mine producing 90% of the world’s pink diamonds
Particularity of pink diamond, its hardness :
Due to its particular forming mechanism, diamonds are more difficult to work with than conventional white diamonds. So it takes 3 to 4 times longer to polish them than other diamonds.
Pink diamond mounted on its tools for polishing
The price of the pink diamond breaks all records :
Whether at Christie’s or Sotheby’s auctions, pink diamonds almost every time break auction records:
- In 2009, the 5-carat Vivid Pink was auctioned for $ 10.7 million
- In 2010, the Graff Pink, a 24.78 carat pink diamond was auctioned for $ 46 million
- In October 2014, an 8.41 carat Fancy Vivid pink diamond was sold for $ 17.78 million, or over $ 2.1 million per carat
Being by nature extremely rare and fashionable among the stars, the pink diamond has recently become an investment for some investors, driving up the prices of the precious stone.
If it is very difficult to give a general price per carat of natural pink diamond, we can nevertheless note that it exceeds 15,000 euros per carat depending on the intensity of the pink color and the purity of the diamond, as shown in the following file:
Pink treated diamonds :
Considering their rarity and the public craze for these stones, there are some artificial treatment means that can enhance the color of diamonds to make them more intense.
These treatments are specified on the diamond appraisal report and allow the purchase of pink diamonds much cheaper than their natural untreated equivalent.
Famous pink diamonds :
The historic diamond is an 8.72 carat Fancy Vivid Pink that belonged to Napoleon the First ‘s niece, Princess Mathilde. It is believed that the stone comes from the Golconda mine in India.
The Graff Pink is a Fancy Intense Pink VVS2 24.78 carats appeared in the 50s and which we know little about the origins of the stone.
The Princely Diamond is a 34.65 carat Fancy Intense Pink VS2 from the Golconda mine in India, it is one of the largest and most beautiful pink diamonds in the world.