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Where do Blue Diamonds Come From?

August 27, 2021

Where do Blue Diamonds Come From

The overwhelming majority of classic and original colorless diamonds have a rich and extensive history associated with their appearance, permanent or short-term ownership of various famous personalities. Recently, fantasy diamonds are rapidly gaining popularity, as they are more unique, more difficult to find, to get, and cut to a miracle presented to the public.

The blue diamond is a very rare and unusual stone. There are numerous arguments for the ultra-uniqueness of blue diamonds, but we will mention only one here: all diamonds in the world are perfect insulators of electric current. It is led by only one - naturally blue. If you choose the symbol of elitism, uniqueness, and class at the same time, there is a blue gemstone - the best candidate on Earth among diamonds. Because there is a really small amount of naturally blue diamonds in the world. It is exactly the case that billions of different diamonds have been cut over the centuries, but there are only about a dozen of thousand naturally blue diamonds.

No more than 1-2 stones of this color are found on only a few continents (Africa, Australia) per year, and most of those that are on sale are synthetic, made by human hands. Naturally, the cost of these unique stones is incredibly high. Only a few people can become the owner of such a fantasy gem. And there are many legends about this diamond. Let’s find out more about such beautiful gemstones as blue diamonds.

Where are the unique blue diamonds found?

A blue diamond begins to acquire its color shade and physical properties for more than one hundred years. Due to its specificity, each mineral is unique and has no analogs. Even the presence of impurities that give color one nanogram up or down can give a unique shade. As a result, the atoms and molecules of the precious carbon compound and boron enter into symbiosis, and the sample radically changes its properties, becoming a naturally reactive semiconductor element. Unique reflective properties are also achieved through the presence of boron impregnations. As a consequence, the blue diamond ring is also not particularly fond of exposure to direct sun ultraviolet rays.

Where are the unique blue diamonds found

Most often, artificial blue gems are sold. They are cheaper but still look great and are in high demand. The marking indicates the origin of the mineral: natural ones are designated by the word “origin”, and synthetic ones – “treated.” The price of natural stones can also vary, it depends on the purity of the color. There are 9 types of crystal according to their shade: from the lightest to the most saturated. Some gems are not pure blue but purple, gray, or green shades. The brightest blue diamonds are called “fancy bright,” they are more expensive than others, but they also look the most attractive.


Ultimately, the price of 1 carat (0.2 g) of a blue crystal can range from 150 to 700 thousand dollars. These are only approximate prices; since there is no specific price list for fancy stones, the cost of each one depends on its qualities. In jewelry, a blue diamond is framed with white gold or platinum. Only these noble metals can perfectly emphasize all the beauty, the extraordinary shade, and the shine of the blue mineral.

The formation process and properties of a blue diamond

formation process and properties of a blue diamond

The first samples of such blue minerals were found in the deposits of the state of India in the first decade of the 17th century in a mine called “Kollur”. Remarkable is the historical fact that even then the Indians especially valued blue diamonds since they considered them to be the eye of the god Rama, who cursed this stone. It was believed that the owner was in for great trouble, grief, and suffering. Consequently, the Indians didn’t really want to acquire them. However, they revered the mineral, since blue diamonds were considered the stones of the gods. This fact could have contributed to the faster spread of blue diamonds in Europe, which allowed them to quickly gain popularity and universal recognition.

Blue diamonds are mined in only a few places in the world: in the deposits on the African continent called Cullinan in the Republic of South Africa and the recently opened Argeil diamond mine on the Australian continent, where other rare diamonds, for example, vibrant purple patterns.

Deposits in India were both unexpectedly discovered and also unexpectedly ended, so this country quickly left the leadership among the countries producing diamonds. However, the unique samples are found at that time, including blue diamonds, are still known to the world and staying in great demand and constant price growth.


An example of such a mineral is the famous Hope Diamond, which was once owned by Cartier and is now on display at the Smithsonian Museum in the United States. It is believed that it became the prototype for the stone in the Heart of the Ocean pendant – a gift to the heroine Kate Winslet in Titanic. Another example is Oppenheimer Blue, mined by De Beers and auctioned off by Christie’s in 2016 for a record $57.5 million. A little less than a year later, in April 2017, the record was broken again by a fancy diamond. Diamonds are magnificent crystals that fascinate with their beauty. Many people like the blue diamond even more than the classic transparent one. The extraordinary sea depths’ radiance, enclosed within it, always attracts attention.

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