WHERE DO GREEN DIAMONDS GET THEIR COLOUR FROM?
Organised carbon atoms pressurised and bounded together results in the formation of a stunning diamond. A structurally perfect and chemically pure diamond is colourless however, the defects in the crystalline structure of diamonds or impurities in their chemical bonding offer them a unique colour. Almost all the coloured diamonds known are formed through the same process, but green diamond have a unique and different but an interesting story.
AN EXTREMELY RARE PROCESS OF NATURAL IRRADIATION PROVIDE THE GREEN DIAMONDS THEIR GREEN COLOUR.
The carbon deposits in the earth are also exposed to the highly radioactive materials present beneath the earth surface. Long exposure to the atomic radioactivity to the diamond during its formation under the ground results in the formation of a genuine green diamond. The radioactive Uranium results in the displacement of carbon atoms as well as their ability to refract and absorb light, thus allowing the diamond to reflect the green colour. The radiations are definitely harmful but green diamonds is merely the green light reflected on the crystal and hence are harmless.
THE LONGER A DIAMOND IS EXPOSED TO RADIATIONS, THE MORE VIVID IS THE GREEN COLOUR.
WHERE ARE GREEN DIAMONDS FOUND?
In the entire history of green diamonds, only a few cases of naturally occurring green diamonds have been documented. The traces of green diamonds, however, have been observed in the South American region in countries such as Brazil, Guyana and Venezuela.
GREEN DIAMOND ARE DISCOVERED IN SOUTH AMERICA, CENTRAL AFRICA, INDIA AND RUSSIA.
The central African region, itself, has a relatively small production of diamonds and hence green diamond is rarely present there. The green diamond in the central African region is found at Borneo. Naturally pure green diamonds are exceptionally rare since the condition in nature for the creation of green diamonds is extraordinarily rare. Besides South America, India and Russia have also produced them in the past. There are, however, only a handful of green diamond projects active in these areas. Being extraordinarily rare, the popularity of green diamonds in comparison to the other coloured diamonds is also disturbed.
WHICH ARE THE FAMOUS GREEN DIAMONDS IN THE WORLD?
The three different types of green diamonds involve a crystal shaped stone with a green shade, stone with yellowish green colour and stone with a dark green outer layer. Among these three types, the smooth yellowish green colour is considered as a true fancy coloured diamond.
Some of the most famous green diamonds in the world are,
The Dresden Green originated in India and was bought in 1741 by Frederick Augustus II. The Dresden Green diamond has a pear-shaped cut and weighs 40.70 carats and is the largest green diamond found to date.
The Ocean green diamond originated in Central Africa. Weighing 5.51 carat, it is also among one of the rarest gems found there. Besides this, the Gruosi green diamond originated in South Africa. The diamond weights 25 carats after much cutting and polishing and is the rarest green diamond that has been found.
HOW RARE ARE GREEN DIAMONDS?
The naturally green coloured diamonds in the whole world are considered as a controversial subject. Unlike the other fancy coloured diamonds, such as blue, pink and yellow, the green diamonds almost never appear at the auctions.
GREEN DIAMONDS DO NOT RECEIVE THE REQUIRED CONSIDERATION FOR BEING RARE IN THE WORLD OF NATURALLY COLOURED DIAMONDS.
The green diamonds are still not categorised among the top three rarest diamonds. Considering the truth, they are also highly rare as the other naturally coloured diamonds. The differences lie in the fact,
- They are not subsequently high in demand from the world.
- They do not receive an equal amount of press time.
A diamond of a different colour, occasionally, has a green overtone. The pure green diamonds, however, hardly even occur. The rarest among all the green diamonds are the Fancy Vivid Green diamonds.
HOW DOES OVERTONE AFFECT THE PRICING OF THE GREEN DIAMOND?
The colour of a fancy diamond is among the key parameters in the determination of its pricing and rarity. Tone, saturation and hue together represent the colour of a diamond. The tone for diamonds is a feature that has a direct impact on the appearance of the diamonds as it represents the intensity of lightness and darkness in the diamond.
LIKE ALL THE OTHER FANCY COLOURED DIAMONDS, THE PRICE OF GREEN DIAMONDS IS ALSO INFLUENCED BASED ON ITS COLOUR.
It is important to note that natural radiation is the cause of green colour in diamonds. As green is the colour between yellow and blue, for this reason the most common secondary colours in green diamonds are yellowish green and bluish green. A yellow green diamond shows a yellow hue. The yellow green diamond may have a high dominant or less dominant yellow hue against the primary green hue. In a similar manner, blue green diamonds also belong to a green diamond family, the green diamond with a blue secondary colour. The combination of the two colours, however, comes in all intensities. Naturally coloured blue and green diamonds are already very rare, likewise blue green diamond is also very rare. The intense coloured diamonds, however, remain more costly than the fancy that will remain costly than the fancy light naturally occurring blue green diamond.
For the people that are going to purchase a green diamond, a strong green together with a darker colour tone would be preferable. Like the other coloured diamonds, green diamonds are also treated to improve their colour and thus to increase their value.
WHAT ARE THE INTENSITY GRADES BY GIA FOR GREEN DIAMONDS?
The intensity of the green colour of a diamond is influenced significantly by duration as well as the type of radiation it is exposed to together with the size of the diamond. The intensity grades for green diamonds are,
- Faint Green
- Very Light Green
- Light Green
- Fancy Light Green
- Fancy Green
- Fancy Intense Green
- Fancy Vivid Green
- Fancy Deep Green
INVESTMENT IN GREEN DIAMONDS
The world of naturally coloured diamonds is fascinating. The auction prices, especially for fancy coloured diamonds, are reaching new heights. It is an undeniable fact that the green diamonds are remarkably rare but they have been underestimated as a result of fewer appearances.
GREEN DIAMONDS HAVE BEEN UNDERRATED BY THE OTHER NATURALLY COLOURED DIAMONDS MAINLY BECAUSE OF THEIR COLOUR PREFERENCE.
Green diamonds, indeed, are very rare. Each year only a few of the natural green diamonds make it to the market. They, however, are increasingly becoming the important and desirable rare coloured stones in the world. Both the diamond enthusiasts and investors know that some of the highly valued fancy coloured diamonds are those that do not have any modifiers rather have only one colour in its purest form. In a similar manner, there is only one large exception in the case of fancy green diamonds.
THE VALUE AND RARITY OF GREEN DIAMOND CAN EVEN EQUAL OR IN SOME CASES EXCEED IN COMPARISON OF A PURE GREEN DIAMOND, WITH ADDITIONAL HUES OF SOME EXCEPTIONALLY RARE COLOURS.
When going to make an investment for green diamond, you must ensure the quality and authenticity of the green diamond based on the GIA report.
WHY INVEST IN GREEN DIAMONDS?
In the last few years, a significant increase in the price of green diamonds has been observed. This fact alone indicates that the green coloured diamonds are becoming a serious demand of the investors. The investors have desired to make an investment in the scarce, uncommon and highly underestimated green diamond, as the knowledge about these green diamonds has continued to flourish.
The naturally coloured green diamonds may look almost similar in appearances, however, they have some huge differences in their market value. The extreme scarcity of the green diamonds is primarily the reason for such huge differences.
Not only it is necessary to ensure that the diamond you are purchasing has been submitted to GIA thus paying close attention to the certification details, but it is also necessary to be well educated on the category of the diamond.
THE IMPACT OF PRICING IS ALSO DETERMINED BY THE SECONDARY HUE.
With green coloured diamonds, the value will be lowered if the secondary hue of the diamond is less rare than the green hue. Most of the green diamonds have at least one or more additional hues, for this reason, the pure green diamonds are considered rarer and priced higher. Besides this, as the overall weight of the diamond rises, the price per carat of green diamond significantly increases.
PRICES EVOLUTION OF GREEN DIAMOND
Green diamond is rarely seen in auctions. Underestimating the green diamond along with the lack of supply are the factors that contributed to its fewer appearance.
- A fancy vivid green diamond weighing 2.54 carat and of VS1 clarity was sold at an auction held by Sotheby’s Geneva Magnificent Jewels in November 2017. The green diamond was sold at a price of $1.222 million per carat, or $3.08 million total.
- A ring containing Aurora Green, a fancy vivid green diamond of 5.03 carat and VS2 clarity was sold at a Christie’s auction held in Japan for about $ 16.8 million or $ 3.3 million per carat in the year 2016. This was the highest price for which a green diamond is sold in an auction.
- Further in 2016, a deep blue green diamond that makes it one of the rarest stones, The Ocean Dream of 5.51 carat was sold for approximately $ 8.9 million.
- In the similar auction, a 2.80 carat vivid bluish green diamond having clarity of VS1 was also presented. This green diamond was sold for approximately $ 2,178,035.
- Another vivid green diamond of 2.52 carat was sold at an auction, Sotheby’s Geneva, at a record price of about $ 3.08 million. It was the largest vivid green diamond ever to appear at an auction while its sales also set an incredible new record.
HOW RARE IS THE GREEN DIAMOND?
The highest level of intensity for green diamonds is the vivid green colour while the vivid green diamonds are extraordinarily rare. All throughout the world, vivid green diamonds weighing more than one carat are around 300. Apart from this, there are only ten vivid green diamonds or may be less if we consider the diamonds weighing above three carats. There are billions and trillions of carbon sheets in a diamond. The most powerful and thus most dangerous to humans are the gamma rays. When these gamma rays knock the carbon atoms out of their crystal lattice, some of the light is trapped. The more the light is trapped in the holes created by the gamma rays, the greener the diamond will become. It can be stated that the green diamonds are produced through a unique method. As there is no one set area of radioactivity all over the world, green diamonds are found rarely. Green diamonds, indeed, are a real mystery. Besides this, some challenges are also faced in naturally coloured green diamonds. Most of the green diamonds have a skin deep green colour. For this reason, it is almost impossible to cut them further into pieces. Green diamonds, particularly those with even distributed green colour, are extremely rare.
Green coloured diamonds are considered to be rarest of all the naturally occurring fancy coloured diamonds. If you have contemplated spending significant money on purchasing a green diamond, consider its purchase from some of the most reputable businesses. The cause of the colour of diamonds should also be assessed through a trusted laboratory. A GIA report will serve as an efficient source of determining the authenticity of a green diamond. Determining the original colour is the key, however, sometimes labs are unable to determine the natural origin of green diamonds. For this reason, before making an investment in green diamonds it is necessary to determine its origin.