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christies green diamond

christies green diamond

A 6.13-carat fancy intense green diamond set a new per-carat record when it sold at Christie’s on May 27 for a whopping $3.6 million, or $594,510 per carat. The square cushion cut diamond is the center of a rose gold halo style ring, accentuated by natural pink diamonds.

Next to red, green is the rarest of colors found in natural diamonds. For most colored diamonds, the color comes from trace amounts of mineral impurities or extreme pressure conditions while the diamond was forming. The tight chemical structure makes it very difficult for any impurities to enter, which is why colored diamonds are exceedingly rare. Small amounts of boron in the crystal lattice structure of a diamond, for example, will impart a blue hue; same goes with nitrogen for yellow, and hydrogen for violet. What gives a diamond a green hue however, is the presence of natural radiation over millions of years. Because the radiation exposure is an external force rather than internal force (such as mineral impurities and lattice defects), it acts on the surface only. As a result, green diamonds are not green all the way through; the color is concentrated on the outer layers and tends to be weakly saturated. That is why a fancy intense green diamond, especially one of a size like this one, is almost a once-in-a-lifetime find.

This spectacular diamond joins the ranks of other recently sold, record-breaking gems at Christie’s. At their Geneva auction just last month, there were three record-breakers alone. They include ‘The Blue’, a fancy vivid blue pear shaped diamond weighing over 13 carats, a 76.5 carat light pink square-cut diamond that sold for $10.2 million, and the ‘Ocean Dream’ – a 5.5 carat, vivid blue-green diamond that went for $8.8million.


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Red DiamondsThe Australian Argyle Diamond Mine will feature three ultra-rare red diamonds in the upcoming Pink Diamond Tender. This is the most it has featured in 30 years.  They began mining in 1983 and only six diamonds have come out of the mine as certified Fancy Red by the Gemological Institute of America. This is a very notable time for red diamonds.

Also for the first time in eight years it will feature a diamond bigger than 3 cts: a 3.02 ct. fancy pink radiant going by the name of “Argyle Imperial.” There is another weighing at 1.56-carat which is round fancy red called the “Argyle Phoenix.”

Josephine Johnson Argyle Pink Diamonds Manager had this to say about it. “Since mining began in 1983 only six diamonds certified as fancy red by the Gemological Institute of America have been presented for sale at the annual tender. To have three of these rare red diamonds in one tender is a very special moment in time.” They will be presented for sale at the annual tender. The diamonds will have their world debut first in Sydney. Then tender viewing will take place in Hong Kong, Perth, and previews in Tokyo and New York with bidding closing in October. All vividly naturally coloured diamonds are expensive but red diamonds are so rare that many think their price might double in the next couple of years.

The Argyle mine produces the world’s entire supply of pink diamonds with the red seen as the top pinnacle of the colour scale. Japan is the largest consumer of pink diamonds since the cherry blossom tree inhabits the land there the shade of pink is highly favorable to them.Argyle Pink

Fancy red diamonds are the rarest naturally coloured diamonds. Very few diamonds receive a grade of fancy red. This grade of fancy red means that the diamond is pure red and has no modifying colour.  No one really knows how the diamond gets to be this colour. It is thought that it gets its colour from a molecular structure distortion as the jewel journeys up from the crusts earth to the surface.  Another thought is that the diamond could get its colour from nitrogen atoms. Diamonds are made up of carbon atoms bonded together, sometimes there are gaps within these atoms and scientists think that the gaps and nitrogen cause the red colour. They are shaped by millions of years of crystallization. Either way the natural colour of a fancy red is unmistakable and breath taking. Diamonds come in different colours including, champagne, yellow, pink, red and purple.  Natural and treated colour diamonds are two completely different markets.

Check out a local jewellery boutique store for more information and to view some different coloured diamonds in a variety of shape and cut. If you are looking for that perfect custom diamond to add to an engagement ring its best to shop at a local jewellery store where they have trusted customer service and can help you find the exact unique coloured stone that’s right for you.


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Pink DiamondOne of the rarest pink diamonds to be made available for auction has sold earlier this month for a staggering $39.3 million at Christie’s in New York City to an anonymous telephone buyer. Pink diamonds are exceedingly rare and prized in the realm of colored diamonds, with only a handful that exist over 10 carats. This makes them very attractive as collectibles for the extremely wealthy, as well as for investment.

The Princie features an impressive weight of 34.65 carats, and also boasts great provenance and origin. Mined around 300 years ago in the Golconda region of South India, an area well known for producing some of the world’s largest and best quality diamonds, it has changed hands with some powerful people.

Most notably, the gem originally belonged to the royal family of Hyderabad, the Indian province which held the Golconda mines. The diamond was passed down the line of Indian rulers until the 1930’s until it reached the last nizam of Hyderabad, Osman Ali Khan, who was deemed the richest man in the world at the time. Around the time of India’s independence in the 1940’s, the nizam had ceded power and had to sell off all his assets including the Princie Diamond. It went on the auction block at Sotheby’s, where it was bought by an anonymous buyer. The diamond surfaced again in the early 1960’s, where it was bought by the London branch of jeweler Van Cleef & Arpels.

Its’ name was bestowed at its’ Paris unveiling party, in honour of the 14-year-old Prince of Baroda, who attended the party with his mother Maharani Sita Devi.

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LookThe Sotheby’s Hong Kong Sale of a Magnificent Jewels is always a show stopping event with many stunning jewelry that lives up to its’ name. The latest sale on April 8th headlined a Diamondsuperb 28.86 carat D flawless round brilliant cut diamond with GIA Ex/Ex/Ex Cut, Polish, and Symmetry. This top lot broke the current record for the highest price-per-carat paid for a D color, flawless clarity diamond – at $6.9 million, or $239,351 per carat.

Although the top draw at this year’s Hong Kong Sale of Magnificent Jewels and Jadeite, it was hardly the only million-dollar draw. Other rare jewels that garnered over seven figures include the second highest value lot: a matching pair of round diamond drop earrings of approximately 8 carats each, which sold for $2.82 million, and a heart-shaped fancy intense blue diamond ring that went for $2.2 million. All three of these lots were snatched up by private Asian buyers.

Also up for bid is a pair of fancy pink diamond earrings that was seen not too long ago in October of 2012 at the pink diamond exhibition at Kensington Palace, London. Named “The Regalia” they feature two fancy pink diamonds of 4.42 and 4.24 carats respectively, surrounded by different Earringsshapes of colorless diamonds.

What sells at these high-end, high-value jewelry auctions are a great indicator for demand in the industry, and the areas where the demand comes from. Many of the largest colored diamonds are saved for the auctions in Asia, where there is an explosive demand from the burgeoning upper class buyers. Antique and period pieces continue to be popular at auction in cities long known for their connections with the jewelry industry, such as Antwerp, Geneva, and New York.

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