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The prices of pink diamonds are continuously rising because they are both rare and highly sought after. Most natural pink diamonds are from the Argyle mine in Australia. But output is forecast to end in 2018 when the mine is shut down. Most pink diamonds from the Argyle mine are smaller stones, and larger stones, of 1.5 carats and more, exceptional.
Purplish-pink stones see the highest prices, while pink diamonds containing tiny traces of yellow, orange or brown are less valuable.
It is very hard to find pink diamonds with very high levels of clarity. However, if they do not have a harmful effect on the effect of the diamond, impurities in pink diamonds are seen as reasonable.
Furthermore, pink diamonds typically feature growth lines in their crystal lattice that are frequently visible, and which can give them a slightly dim appearance in the center of the stone. This is a natural feature, however, and not regarded as a deficiency.
Perhaps the most common of natural colored diamonds are yellow gemstones which typically have a high level of clarity. It is important to ensure that you do not buy a yellow diamond with large black inclusions, since they are easily spotted in yellow stones.
Retaining the maximum saturation of color is achieved by manufacturers by cutting yellow diamonds quite thickly. This is not visible, however, when the diamond is set, and does not influence the value of the stone. Although fancy, intense and canary yellow are the best-known shades of yellow, there is a wide range of shades stretching from vanilla to honey, gold, bronze and saffron.
There have been many famous yellow diamonds, such as the 110-carat Sun Drop diamond, and the 128-carat Tiffany Yellow Diamond.
Long associated with kings and royalty, in addition to the classic blue diamond, they can contain one or a combination of shades of gray, green, and violet.
Blue diamonds are among the rarest of natural color diamonds, and supplies are becoming increasingly scarce as the only mine in the world that produced really pure blue diamonds, in South Africa, closed.
There is still a small output of blue diamonds from the Argyle mine in Australia, which is best known for its production of pink diamonds. The Argyle blue diamonds are different to those that came out of South Africa. They are usually dark blue, and have a metallic glow. Frequently, they have little streaks of gray, giving them a steel blue color, and some have traces of violet.
The blue color changes with light much more than do other colors. Blue diamonds do not have the blue color of sapphires, but either a sky blue or a darker metallic blue.
The rarest of colored diamonds after red diamonds are natural green diamonds. Not surprisingly, prices are therefore very high. However, mixed green colors, such as mint, lime and olive attract lower prices.
These are so named because they temporarily change color. They do not actually fit into a color of their own, but are sold in their own category due to their ability to change color. They are found in relatively few color combinations, such as grey-yellowish, greyish-yellowish, grey, greyish, grey-greenish, brownish greenish, and green-yellow.
Fancy White Diamonds
The existence of nitrogen and a high concentration of submicroscopic inclusions that scatter light, created a translucent ‘milky’ white color and give us natural white diamonds. Because natural white diamonds look similar to opals, they are on occasion referred to as ‘opalescent’.
As with other colored diamonds, pure orange diamonds, without any traces of yellow or brown, are exceptionally rare. Therefore, prices are very high. Again, as with other colored stones, an orange diamond with a trace of another color, such as yellow, will cost less.
Even an orange diamond with a small dash of yellow will appear orange, while providing a more affordable price point prices. Orange diamonds range from bright pumpkin to apricot, saffron and cognac.
Pure natural purple diamonds are so rarely found or available on the market as to make them almost non-existent. They usually contain pink or gray modifiers, which as a consequence prevents them from receiving a fancy purple grade in laboratory reports.
There is a range of mixed purple colors available on the market, including pinkish-purple, grayish-purple or purplish-pink, in hues of lilac or lavender.
Purple diamonds are believed to have been created as a result of extremely high pressures during their rise through the earth. Subsequently, purple stones often contain impurities because of the rough conditions to which the stones were subject. However, this is a known fact and not considered to work against these diamonds as long as they do not work heavily against their overall beauty.
Most of the pure purple diamonds come from Russia, whereas the provenance of grayish or pinkish purple diamonds is often the Argyle mine in Australia.
Brown diamonds are the most widespread of colored natural diamonds. For many years, brown was regarded as a less attractive color and most were allocated for industrial purposes. But technical progress and an increase in marketing efforts brown diamonds have grown in popularity as gemstones.
Brown diamonds compose a large part of Australia’s diamond production. The origin of the brown color is regarded as being a result of irradiation treatment, nickel impurities and lattice defects associated with plastic deformation. And this last reason is regarded as being the principal cause. However, a high-pressure high-temperature (HPHT) treatment has been created to repair lattice defects and convert brown diamonds into yellow or even colorless stones.
Gray diamonds typically run the range from a light smoky color to deep graphite. They are regarded as having a distinguished and elegant appearance, and gray diamonds provide a largely neutral color that can merge with any fashion look, with metallic hues giving sparkle and fire.
Gray diamonds are the result of hydrogen being trapped in the atoms at the time they were created. As a result, they contain beautiful shades of silver that have a refined and distinguished appearance. Gray diamonds frequently contain blue and green hues as secondary colors.
Champagne diamonds can range in color from light champagne to deep, rich cognac and brown. They have become increasingly popular with celebrities in recent years. Rio Tinto, which mines Champagne diamonds at its Argyle mine in Australia, says there is growing demand in the United States, the world’s largest diamond jewelry market, for champagne color diamonds, while it has also set up programs to promote these stones in the growing Indian market. Market research shows that consumers finds natural colour champagne and cognac diamonds an appealing alternative to more traditional white diamonds.
Argyle Diamonds has devised the C1 to C7 color scale to grade champagne diamonds.
Natural red diamonds are the rarest of all natural colored stones. So much so that fewer than 10 such diamonds are produced annually in the whole world. Moreover, only a relatively small number of red diamonds have ever received the grade of fancy red – the purest form of red diamonds. They frequently contain modifying colors, including pink, purple and brown, thus providing a mixed effect.
However, in contrast to other colored diamonds where traces of additional colors usually reduce the price, a brownish or purplish-red can cost almost as much as a fancy red, since the base color – red – in itself is so rare.
Argyle Pink Diamonds
The world’s most-famous pink diamonds come from the Argyle Diamond Mine in the northern part of the East Kimberley region of Western Australia. Owned by mining company Rio Tinto, the mine was opened in 1985. The mine accounts for around 90% of the world’s pink diamonds. It is believed that the natural pink color was the result of pressure under the earth’s surface slowly bringing the stone closer to the surface and changing its structure. Consequently, it absorbed light and took on a pink color that has not been found anywhere elsewhere in the world.
The price of the pink diamonds depends on their color scale, which ranges from pastel rose to purple red. They are graded on the intensity of color and their value increases with the intensity. The Argyle Diamonds company has its own 9-point grading scale for its gemstones. On its scale, 1 is the deepest color and 9 is the lightest. On average the price of the gems is around 50 times the price of a similar quality white diamond.
Although we are best known for our large and varied range of color diamonds, we also have a big selection of white diamonds, including diamonds with GIA certificates, triangles and pairs. Please contact us to find out if we have what you need. Even if we don’t, we will make every effort to source it for you.
We create colored diamond jewelry as specifically requested by clients and tailor-made to their requirements. Please contact us regarding custom-made jewelry and well help you select the appropriate diamonds to fit your design and budget.
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