FANCY BLUE DIAMONDS
FOR YOUR BLUE DIAMOND ENGAGEMENT RING
The powerful color of the sea and the sky meet in these exceptional gems. Fancy blue colored diamonds are extremely rare and each shade is exquisite. They range from very light shades through to a steel blue hue.
Natural blue diamonds derive their color from boron impurities. Due to the presence of boron, some blue diamonds are able to conduct electricity!
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Three Types of Blue Diamonds
Natural Untreated Blue Diamonds
Natural, untreated blue diamonds are extremely rare. Natural blue diamonds usually show a hint of gray or sometimes green, thus making the pure blue the true Cinderella's slipper of diamonds.
Most natural blue diamonds derive their color from boron impurities, although natural low grade irradiation can also be the cause of the blue color. The presence of boron makes some blue diamonds conduct electricity!
PRICING OF NATURAL BLUE DIAMONDS: While we often get requests for natural blue diamonds, these diamonds are more rare than one might imagine. A fine blue diamond of a carat size can literally be in the hundreds of thousands of dollars. The oval shown here is just over a quarter carat, pure medium blue, rolling in at nearly fifty thousand dollars.
For an affordable blue diamond, your best options are color enhanced natural blue diamonds, which are more saturated in tone, or lab created blue diamonds, which have natural color yet are still extremely rare.
Color Enhanced Natural Blue Diamonds
Color enhanced blue diamonds start in the earth. They are earth grown and mined, just like a natural fancy colored diamond. Unlike it's rare cousin, however, the color enhanced diamond goes through a treatment process which changes the tone of the diamond.
This is a permanent and internal treatment; it is not a coating.
Color enhanced blue diamonds are not available in light pastel tones. They have deep rich colors, with a green overtone, giving them a sparkly, turquoise ocean feel.
PRICING OF COLOR ENHANCED BLUE DIAMONDS: These diamonds are very close in price to natural white diamonds, and sometimes are even a little less. It depends primarily on the desirability of the color: lighter blue diamonds will be the most expensive, while the darker, more saturated tones are often more affordable than a white.
Lab Created Blue Diamonds
Lab created blue diamonds are grown in a laboratory, not in the earth. They are identical on a molecular level as natural diamond, therefore they have the same hardness and internal characteristics as a natural diamond. Read more about fancy color lab created diamonds here.
The blue color of a lab created diamond is more natural than the color of a color enhanced blue diamond.
Although there is still a limited availabliity, the colors range from very light blue to a medium blue, all in the natural blue hues found in earth created blue diamonds.
PRICING OF LAB CREATED BLUE DIAMONDS: Because of the desireablility of the color of the lab blues, if the color is a nearly pure blue, the stone will likely be significantly more than a white diamond. Grey blues will be more affordable.
Blue Diamond History
The Cullinan mine near Pretoria, South Africa is the world's only notable blue diamond producing mine. The mine also produced the largest diamond of the De Beers Millennium Jewels collection--the brilliant vivid blue Heart of Eternity weighing 27 carats.
The Hope Diamond, arguably the most famous diamond in the world
, is a natural fancy blue diamond, weighing 45 carats. It was brought from India to Europe in the 17th century, when it was still known as the Tavernier Blue, and sold to King Louis XIV of France. It came to be considered bad luck for its subsequent possessors, including Marie Antoinette. This deep blue diamond is now displayed at the Smithsonian Institute in Washington DC.
The largest blue diamond
is the Idol's Eye, weighing 70.21 carats. It made its first public appearance at a Christie's auction in London in 1865.
What Blue Diamond Will Sparkle in Her Eyes?