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Natural Fancy Coloured Diamonds Diamonds come in a boucles d’oreille chandelier variety of colours, but the vast majority of diamonds sold in the jewellery industry range boucles d’oreille arbre de vie swarovski from near colourless to very light yellow or brown. coque iphone The most valuable are colourless diamonds (which have extraordinary ability boucles d’oreille pandora to absorb all rays of light equally) and natural fancy coloured diamonds (due to their rarity and uniqueness). The colour in Natural Fancy coloured Diamonds is due to the presence of certain elements like nitrogen, boron, etc. coque iphone which were introduced by nature during the diamonds formation deep in the earth. coque samsung coque samsung Natural Fancy Coloured Diamonds Suite In order to classify diamonds as NATURAL, they boucles d’oreille claire’s are tested and certified in a Gemmological laboratory such as GIA, HRD, or AGS . Once a stone has been certified, it boucles d’oreille star wars has its own unique and personal ID which includes an ID number, measurements, weight, shape, clarity, polish, symmetry and fluorescence. bijoux bague The price of fancy coloured diamonds is still effected by the 4Cs, but coloured diamonds are polished in a different manner than white diamonds in order to emphasise the colour as much as possible. Natural Fancy Coloured diamonds can appear as one primary colour, without boucles d’oreille citron any secondary hue for example, fancy blue diamonds, fancy pink diamonds, etc. Natural Fancy coloured diamonds boucles d’oreille corail are graded as either Light, Fancy Light, Fancy, Fancy Intense, Fancy Deep , Fancy Dark, and Fancy Vivid. teeshirt licorne The stronger the colour, the boucles d’oreille écaille collier prenom vertical tortue higher the price! Each coloured diamond is different not only because of its natural body colour but also because of the way it boucles d’oreille feuille is shaped and finally polished. bijoux pas cher Most fancy colour site mon collier prenom diamonds are cut into cushion or radiant shapes forms, which best bring out the depth of hue. kawaii licorne bijoux pas cher boucles d’oreille collier prenom cdiscount pour homme The most skilled cutters shorten the optical light path through the diamond, creating the bright sparkle that is reflected from them. coque samsung Different regions of the earth have yielded particular types of boucles d’oreille petite coloured diamonds, boucles d’oreille saphir and each colour requires a master cutter knowledge and appreciation to unlock the bague swarovski carré beauty within. coque huawei Colour is the most important factor in determining the beauty and value of a gemstone. The more pure a gemstone hue, the more valuable it is. The majority of white diamonds are not rare! For over 60 years the DeBeers cartel has convinced Americans that diamonds equate with love and are to be treasured. However, natural fancy coloured diamonds porte boucles d’oreille are truly exceedingly rare and are simply geological flukes. coque huawei For every 100,000 D flawless diamonds, there is probably one coloured collier prenom 2 anneaux diamond, and it is probably not flawless. coque huawei Green and Blue coloured diamonds follow closely behind and are exceptionally rare. bijoux bracelets Following in h&m boucles d’oreille rarity are the Purple, Pink and Violet colours. coque samsung The next layer of rarity goes to orange and olive. coque samsung coque samsung Yellow, brown, champagne, gray and black diamonds are only modestly rare. Argyle pinks and purple pinks in contrast, have a characteristic full bodied, bright and intense colour. bijoux bracelets every 39.2 million carats of diamonds mined at the Argyle, only 40 carats of pink diamond is deemed worthy of being presented collier prenom victoria for sale at comment contacter mon collier prenom their annual, invitation only tenders. The exhibit lasted from June 27th to September 30th and featured a number of exceptional coloured diamonds: (top row left to right) the Steinmetz Pink, the Millennium Star, the Allnatt Diamond (bottom row left to right) the Heart of Eternity, the Pumpkin Diamond, the Tiffany Yellow, the Moussaieff Red and the Ocean Dream. Fancy coloured diamonds are graded according the saturation of the colour along with different hues present in them. Following is a sample scale of colour saturation: In Fancy coloured diamonds, main dominant colour is listed after the modifying colours. Due to the rarity and high prices of naturally occurring coloured diamonds, people were forced into finding a lower priced alternative. Scientist came up with a process which mimics the way diamonds are coloured naturally. coque iphone The most common process used in enhancing diamonds in the industry is called irradiation. coque iphone coque iphone This is a process in which natural diamonds with non fancy colours are subjected to high energy particles (alpha, beta, gamma, neutrons, x rays or microwaves) in a properly equipped laboratory. bracelet homme Some of these diamonds are often subjected to further colour enhancement by heating boucles d’oreille puce them at high temperatures of up to 1400 degree Celsius. coque iphone The diamonds processed in this manner are called enhanced fancy coloured diamonds and are completely safe to the wearer. coque iphone Most diamond colours can be artificially induced. Proof that a stone has a natural colour can only be obtained from a gemological laboratory. bijoux pas cher When considering the purchase of an expensive stone, it is important to have a certificate from an independent laboratory stating the natural origin of its colour. However, problems can occur: for instance, when testing green diamonds, it is difficult to differentiate a natural from an artificially induced colour. coque iphone The process of artificially altering the colour to boucles d’oreille filigrane dore green involves irradiating which can also occur naturally.