It was considered internally and externally flawless with its rating of color grade D, the highest grade of colorless diamond. In fact it has been said that the Golden Jubilee rough was used by the De Beers Company, to test a series of modern tools and equipment developed by the company for the processing of larger diamonds. However, they constitute only about 1-2 % of all naturally occurring diamonds. The closely guarded secret of the De Beers Mining Company was unveiled to the world only on March 11, 1988, at a special banquet held to mark the centenary and attended by dignitaries of diamond-producing countries, and companies involved in various aspects of the diamond industry and trade. The De Beers Centenary Diamond . The list may not be entirely comprehensive as some diamonds might have been inadvertently omitted or due to lack of precise information. The Centenary Diamond was unveiled in its final, polished form in … The Gemological Institute of America has certified Centenary Diamond with a color grade as D color. Since then the Premier diamond mines has produced some outstanding diamonds such as the Niarchos in 1954, the Taylor-Burton in 1966, and the Premier Rose in 1978. Centenary Diamond Weight 273.85 carats (54.770 g) Mine of origin Premier Mine Discovered 17 July 1986 Cut by Gabi Tolkowsky, Jim Nash and Geoff Woolett Original owner De Beers 5 more rows Who owns the most expensive diamond in the world? On March 11, 1888, Rhodes incorporated De Beers Consolidated Mines Ltd. By mid 1890s, Rhodes had established the Diamond Syndicate with a view of controlling the word diamond distribution, in order to keep prices high and demand steady. The diamond clarity … The diamonds are said to be chemically pure and structurally prefect. 39.90 × 50.50 × 24.55 mm. It is the blue diamond from the movie Titanic that was worn by the character of Kate Winslet. The following table is a "comprehensive" list of 68 known faceted famous diamonds in the world greater than 100 carats arranged in descending order of weights. It was named the Centenary Diamond as it was presented in the rough for the De Beers Centennial celebration in May 1988. The original rough weighed 599 carats (119.8 g). A diamond’s clarity is in reference to the number, size, type and degree of visibility of flaws or inclusions in a diamond. Posted in Uncategorized | 1 Comment. Washington Diamond. (adsbygoogle=window.adsbygoogle||[]).push({}); Powered by Ultra SecureAmazon (USA) Cloud Network. Diamond Platnumz like most top artists, is a brand ambassador to multinational companies Vodacom Tanzania, Coca-cola, DSTV and Red Gold and earning in multi-millions by endorsements deals from multinational companies. Since then De Beers Consolidated Mines Ltd. has been closely associated with the Anglo-American Corporation of South Africa, in exploring the diamond mines of Southern Africa and Namibia, and controlling the world diamond trade. The centenary diamond was discovered In 1980. The centenary is a modified heart-shaped brilliant cut diamond with a weight of 273.85 carats. List of largest gem-quality rough diamonds discovered in the world as at year 2011. Enter your email address to follow this blog and receive notifications of new posts by email. After the success of the cutting of the Golden Jubilee, Gabi Tolkowsky and his team embarked on the more challenging task of cutting the Centenary diamond. TheRichest Nov 23, 2012 . This was the first time such a large number of facets had been created for a diamond, and the breathtaking effect of this was visible even to the casual observer. The actual mining took place at a hill in the farm called Colesberg Kopple, where the miners dug intensively, along the course of a diamond bearing pipe (now known as Kimberlites). incorporated De Beers Consolidated Mines Ltd. The GIA color grading  for the diamond is D-color, which is the highest grade for colorless diamonds, and the clarity is internally flawless (IF). The veracity of this statement is subject to the assumption that the Cullinan I and II diamonds,which are above the Centenary diamond in the table below, are not internally flawless, being true. The Chairman's closing remarks was greeted by a wild round of applause, and the rough diamond discovered in 1986 was christened the "Centenary Diamond". Change ). Another important diamond mine, that was discovered in South Africa in 1902 by Sir Thomas Cullinan, was the Premier mine, situated in Transvaal, South Africa. The Centenary diamond gets its name from the centenary of the De Beers Consolidated Mines Ltd. celebrated on March 11, 1988. The Kimberley mine was named after the first Earl of Kimberley, who was then the British Colonial Secretary. The Centenary Diamond is the third-largest diamond ever recovered from De Beers’ Premier mine in South Africa. 1888 was the year the English entrepreneur Cecil Rhodesincorporated De Beers Consolidated Mines Ltd.The Centenary rough diamond was actually discovered on July 17, 1986, at the Premier diamond mines, but all those involved in the discovery were sworn to silence. It is the third-largest diamond to come out of the Premier Mine, and with a grade of D, it is internally and externally flawless. 4. It took the team 154 days, to cut and remove 50 carats of cracked material. The team finally presented 13 different designs to the De beers board, with a strong recommendation in respect of one design, viz. ",whatIsThisUrl:"",background_color:"",version:1,display_variant:""}); It was considered internally and externally flawless with its rating of color grade D, the highest grade of colorless diamond. ", says Ari Epstein, CEO of the Antwerp World Diamond … Sir Ernest Oppenheimer - Diamond and Gold Mining Entrepreneur who took control of De Beers in 1929. This diamond is worth $100 million USD. While some diamonds have long, complicated stories attached to the, the Centenary Diamond history is a fairly short one. the modified heart-shape. It was later cut to a modified heart-shape, weighing 273.85ct. The stone has a total of 247 facets, 164 on the crown and the pavilion, and 83 around the girdle. The Centenary rough diamond was actually discovered on July 17, 1986, at the Premier diamond mines, but all those involved in the discovery were sworn to silence. Weighing an incredible 273.85 carats (54.770 g), the Centenary Diamond is one of the largest diamonds on this top ten list. ( Log Out /  Change ), You are commenting using your Facebook account. 1245 W … A specially designed underground room in the De Beers Diamond Research Laboratory in Johannesburg, was set up, with the sole purpose of working on the Centenary diamond. The table was painstakingly collated by our staff after collecting all available information. The faceting was finally completed after nearly 10 months of painstaking work in February 1991. While the Centenary diamond has never been appraised for it's value, it is known to have been insured for around US$100 million, at the time of it's unveiling in May 1991. Note that diamonds are priced in steps, and the price increases in geometrical progression, as the size goes up. Elaborating on the evolution of the diamond cuts starting with the 19-faceted table-cut, Please do not copy our tables without our permission. The eleven exceptional quality blue diamonds that constituted the De Beers Company's limited edition Millennium Diamonds Collection, that was exhibited at the Millennium Dome, throughout the year 2000 were all sourced from the Premier diamond mines. A hand picked team of engineers, electricians, and security guards were also co-opted by the company to assist in this project. 273.85-carat, D-color, Internally Flawless, Modified Heart-Shaped Centenary Diamond. An expert was hired to lead a team of diamond cutters, a group of engineers, electricians, and security guards were specially selected for the operation. Change ), You are commenting using your Google account. The Blue Moon Diamond in his new name The Blue Moon of Josephine is the proud owner to the title Most Expensive Diamond in The World! 5. Read More. With everything in place, the team set about, with the difficult task of cutting the stone. This was in line with Gabi Tolkowsky's belief that This diamond was to be cut into a smaller stone; however, the cutting of such an immense diamond was a long process. Open FREE Unlimited Store                   Join Our Newsletter. The De Beers Centenary Diamond is, at 273.85 carats (54.770 g), the third-largest diamond to have been produced in the Premier Mine. According to this table the Centenary diamond occupies the 17th position. Naturally it will be called the Centenary Diamond." The Centenary Diamond was formall… Not only was this an appropriate moment to reveal the long kept secret of the Company, but the name chosen for the new discovery was also the most appropriate. Mined in 1986, the stone weighed 599 carats in its rough form. See table below :-. 4. This means it is internally and externally flawless. Lots of world famous diamonds - Marypwaters, one person followed me and one person unfollowed me // automatically checked by, one person followed me // automatically checked by, one person unfollowed me // automatically checked by. Never before had such a high number of facets been polished onto a diamond. Posted on September 28, 2007.Filed under: Centenary Diamond | The De Beers Centenary Diamond is, at 273.85 carats (54.6 grams), the third-largest diamond to have been produced in the Premier Mine.The Centenary Diamond is rated in color as grade D color by the Gemological Institute of America, which is the highest grade of colorless diamond and is internally … Despite our lack of knowledge as to the diamond's worth and whereabouts, if it surfaces in a country's Crown Jewels or in a Museum, and goes on auction, we would then be able to conclude the Centenary diamond's worth today. The de Beers Centenary Diamond - 84.2 million euros This colorless diamond, named after the de Beers Consolidated Mines, is classified with the highest grade of colorless diamond - a grade D color. Important C larifications. The Centenary diamond is perhaps the largest, faceted, D-color, internally as well as externlly flawless diamond in the world. It was named the Centenary Diamond as it was presented in the rough for the Centennial Cel… The De Beers Centenary Diamond, also known as The Centenary Diamond, is the third largest diamond produced from the Premier Mine. According to this list, the 273.85-carat Centenary diamond occupies the 7th-position, which means it is the 7th-largest faceted diamond in the world. 11 Tips To Purchase Affordable Solitaire Diamond Engagement Rings. In addition to the Centenary, two other flawless, pear-shaped smaller diamonds, weighing 1.47 and 1.41 carats were also cut from the rough. Purchased from Sariasong via resell. The stone was later loaned to the Tower of London, where it was displayed for a number of years. This massive colorless diamond was purchased by the Transvaal Government, and presented in 1907 to the reigning British Monarch, King Edward VII. The town of Kimberley was erected  in 1878, and incorporated into the Cape Colony in 1880. King Louis XVI of France was said to have owned th. Discovered in the Premier Min in July of 1986 with the help of an X-ray imaging system, this massive stone weighed 599 carats (119.8 grams) uncut. We have tried our best to make the list all inclusive. The dimensions of the diamond are 50.50 x 39.90 x 24.55 mm. The Diamond Syndicate was the forerunner of today's Central Selling Organization, that controls much of the world's trade in diamonds. The true value of the Centenary diamond is unknown, but the diamond was insured for around $100 million in 1991. maximizing for brilliance, maximizing for color, and maximizing for yield. The Centenary diamond comes immediately after the 312.24-carat Spirit of de Grisogono diamond, the 6th-largest diamond, and also the 2nd-largest black diamond in the world. List of Famous Diamonds Greater than 100 carats in weight arranged in descending order of weights. Others in the team included Geoff Woolett, Jim Nash, and Dawie du Pleiss, all accomplished diamond cutters. He further said, “Every diamond you touch is an individual, like you. The Centenary diamond was a 599-carat top-color rough diamond. An internally flawless, oval diamond weighing a huge 59.60ct, this gemstone was later renamed to CTF Pink Star in memory of the current Chow Tai Fook chairman’s late father. The final cutting of the Centenary diamond was completed in February of 1991, five years after its discovery. De Beers Consolidated acquired the mine fully in 1945, soon after World War II, and production resumed immediately afterwards. However, two diamonds above this, were discovered after 1986. It is an Internally Flawless 12.03 carat Fancy Vivid Blue Diamond that his history goes back to 2014 when he was unearthed by Petra Diamonds. De Beers Centenary Diamond. Gabi Tolkowsky has said that he believes that the gem has been sold, but De beers declines any comment, citing it's policy of anonymity. In 1926, Oppenheimer bought a seat on the De Beers board and became it's Chairman 3-years later. According to the list of famous D-color diamonds given below, the Centenary diamond is undoubtedly the 3rd-largest, faceted, D-color diamond in the world. Master cutter Gabi Tolkowsky and his select team took nearly three years to transform it in to the largest, most modern-cut, flawless, and top-colour diamond. Change ), You are commenting using your Twitter account. All rights reserved. The Centenary Diamond — $100 million. The Gemological Institute of America rated it as a fancy dark grayish blue. They are also structurally perfect diamonds, without any plastic distortions. Copyright © .Internet Stones.COM. The Centenary diamond was a 599-carat top-color rough diamond, pin.internetstones.com- Social Pinboard- Sart yours & connect with millions, Invite Friends From Yahoo, Gmail etc-One Click. It is the world's third-largest, modern-cut perfect diamond that possesses 599 carats in rough form. Gabi Tolkowsky Examining the Centenary Diamond with a Jeweler's Loop. Thus factors that usually cause color in diamonds are absent, and therefore these diamonds are absolutely colorless. [2] [6] This monumental diamond remained untouched for over a year while the correct tools … The Centenary Diamond was discovered in the Premier Mine on 17 July 1986. The Chairman of the company Mr. Julian Oglivie Thompson, who delivered the welcoming speech on this occasion, wanted to give an element of surprise to his distinguished audience, and reserved the disclosure of his well-guarded secret until the tail-end of his speech. After this was completed they were left with a roughly egg-shaped stone weighing about 520 carats. If the diamond is too shallow or too deep, some light will escape through the bottom, giving a shadowy appearance when viewed from the top. eval(mod_pagespeed_4Te2oPKEXO); The Centenary Diamond is believed to be the biggest, faceted, D-colour diamond in the world. The final cutting of the Centenary diamond was completed in February of 1991, five years after its discovery. The Premier mine is also the source of several high quality colored diamonds, including the very rare blue diamonds. The rough weighed 599 carats and took three years to be polished to a flawless 273-carat diamond, ranking third in the world in weight. The ownership of the Premier mines was subsequently acquired by the De Beers Consolidated  Mines Ltd. and under it's management became one of the most productive mines in the world. The closely guarded secret of the De Beers Mining Company was unveiled to the world only on March 11, 1988, at … Perhaps no diamond has as much glamour as this luminous blue 45.52-carat stone, encircled by 16 white diamonds and set on display in the Smithsonian’s National Museum of Natural History (temporarily closed, but its treasure twinkles 24-7 online). Gabi Tolkowsky was also involved in the cutting of the 755-carat Golden Jubilee rough diamond, the large yellow brown diamond, also discovered in the Premier diamond mines in 1985, just one year before the discovery of the Centenary diamond. Centenary Diamond In 1988, he was commissioned by them to act as master cutter for the 273.85 carats (54.770 g) Centenary Diamond , a task which took three years. The De Beers Centenary Diamond is a 273.85 carats D Color F Clarity modified heart shaped diamond. It is perfect in color and one of the largest top-color diamonds ever found. It was in this mine the world's largest diamond weighing 3,106 carats in the rough state, was discovered in 1905, and was appropriately named the Cullinan Diamond. In 1871, the English entrepreneur Cecil Rhodes invested and obtained a claim in the De Beers mines. ; The second section of this article will explain how diamond prices are determined and calculated. Design specifications for this room included the strength and stability of the materials used, in order to prevent mechanical vibrations and temperature variations, thereby minimizing any mitigating factor that might interfere with the cutting of the Centenary diamond. If we subtract two positions the Centenary diamond at the time of discovery in 1986, would be the 15th-largest rough diamond ever discovered. The De Beers Centenary Diamond is, at 273.85 carats, the third-largest diamond to have been produced in the Premier Mine. He said, "many artists throughout time realized that adding facets meant adding more mystery and reaction to the journey of light in the diamond. The next important step was the difficult task of cutting the rough centenary diamond to produce either a single faceted diamond or several smaller diamonds, keeping in mind the three cardinal principles of diamond cutting, viz. and under the management of De Beers Consolidated became one of the most productive mines in the world. Create a free website or blog at WordPress.com. Centenary Diamond. With the expansion of his investment Rhodes was eventually able to purchase most of the diamond mines in South Africa. Two diamond mines known as the Kimberley and the De Beers were opened on this farm, and eventually became the world's most productive diamond mines. They are the Millennium star rough diamond discovered in 1990 and the Lesotho Promise discovered in 2006. It was named after its former owner, the late Sir Philip Oppenheimer, a diamond […] This diamond is worth $100 million USD. The De Beers mining company commissioned a team of experts and world renowned master cutters, headed by Gabi Tolkowsky, a world renowned diamond cuter, hailing from a family of diamond cutters, with five new diamond cuts to his credit, to evaluate the rough Centenary, and to recommend the most appropriate techniques and designs, to be adopted, and subsequently to undertake the actual cutting of the stone. The Centenary Diamond was discovered in the Premier Mine on July 17, 1986 using their X-ray imaging system. The Centenary diamond gets its name from the centenary of the De Beers Consolidated Mines Ltd. celebrated on March 11, 1988. ( Log Out /  See the second table given below. In 1917, Ernest Oppenheimer founded the Anglo-American Corporation, which took control of the diamond mines in South-West Africa (Namibia), and created a new diamond syndicate. Among top-color diamonds, only the Cullinan I and II are larger than the Centenary diamond. Gabi Tolkowsky examining the rough Centenary diamond. The mine which was operated hitherto as an open pit mine, now began underground mining operations, Among top-color diamonds, only the Cullinan I and II are larger than the Centenary diamond. As of year 1986, the 599-carat Centenary rough diamond was the 15th largest rough diamond ever discovered in the world. That is the fantastic life of a diamond cutter!”, 545.67-carat Golden Jubilee Diamond - the Largest Faceted Diamond in the World. Cecil Rhodes founder of the De Beers Company and Prime Minister of the Cape Colony from 1890 to 1896. Diamonds were first discovered in Southern Africa in the mid-1860s on the farm belonging to Nicolas and Diederick de Beer, near what is now the city of Kimberly. The cut and polished Centenary diamond is a 273.85-carat, D-color diamond with a modified heart-shape. Thus the shape of the stone itself presented some serious problems to any experienced cutter who would attempt to cut it. Accordingly the final statement of his speech was, "We have recovered at the Premier Mine a rough diamond of 599 carats which is perfect in color - indeed it is one of the largest top-color diamonds ever found. List of famous D-color diamonds over 100 carats in weight. The list will be revised as more information on other new diamonds are received. The Centenary diamond, being a D-color diamond is a Type IIa diamond, free of nitrogen and all other chemical impurities. While the value of the Centenary Diamond has never been appraised, it was reported that the diamond was insured for about $100 million, when it was unveiled in May 1991, after its cutting. The original rough stone had 599 carats of weight and it has been cut by the team of Gabi Tolkowsky. during the outbreak of the 1918 worldwide flu pandemic, known as Spanish Flu. The Hope Diamond has an estimated value in between $200 – $250 million. After  the completion of the cutting, the centenary diamond had a weight of 273.85 carats and dimensions of It is also the largest modified-heart shaped diamond in the world, and perhaps the only modified heart-shaped diamond in the list of famous diamonds greater than 100 carats in weight. Thirteen different potential designs were presented to the diamond company that owned the Centenary diamond, with a strong recommendation for what would become the eventual modified heart-shaped design. CURRENT WORTH = $29 - resell purchase ($15) - half body by UltraOof ($10) - gem ref by UltraOof ($4) In it's rough form the Centenary diamond resembled an irregular match box with angular planes, a prominent horn like structure jutting out at one corner and a deep concave on the largest flat surface. The lion share of his net worth come directly from his music but Diamond Platnumz has also several other sources of income. Although it has never been publicly appraised, it has been insured for over a 100 million US dollars in 1991, making the Centenary Diamond, the 5th most expensive diamond in the world! Centenary University senior Sean Graham has been selected as a recipient of the Paul A. Stellhorn Undergraduate Paper in History Award, an annual award presented by the New Jersey Historical Commission. Washington Diamond 1245 W Broad St, Falls Church, VA 22046 (703) 536-3600. As a rough diamond, the Centenary Diamond weighed over 500ct. Sometimes referred to as internal characteristics, these inclusions occur naturally in the diamond and are similar to a birthmark. The value of the Golden Jubilee diamond is estimated between $4 – $12 million. This required the skill and expertise of experienced and accomplished cutters in the diamond industry. The Centenary Diamond is rated in color as grade D color by the Gemological Institute of America, which is the highest grade of colourless diamond and is internally and externally flawless. Remember The Heart of the Ocean, or Le Couer de la Mer? This was done to prevent the heating and vibrating of the diamond. (adsbygoogle=window.adsbygoogle||[]).push({}); The Centenary rough diamond discovered in the De Beers Premier Diamond Mine on July 17, 1986, using the latest electric X-ray imaging system, was a 599-carat top-color rough diamond, the third largest rough diamond ever recovered from the Premier Diamond Mine, after the 3106-carat Cullinan rough diamond discovered in 1905 and the 755-carat Golden Jubilee rough diamond discovered in 1985. An engagement ring is one of the most special purchases of someone’s life. trending. ( Log Out /  The Centenary diamond is currently in the De Beers collection and is estimated to be worth $ 100 million. socializeit({pack:1,domain:"internetstones.com",share_horizontal_label:"Share this page:",share_sticky_label:"Share",payItText:"",payItExpanded:"",szColor:"#FFFFFF",whatIsThisLabel:"What’s this? The Board accepted the modified heart-shape as it's choice, and then the final process of faceting the Centenary began in March 1990. Production was again disrupted during the great depression of the 1930s and later the second World War. No diamond will ever act the same.” He said, "I speak to the diamond when cutting: “What do you want to become? ( Log Out /  Unfortunately, the clarity grades of the Cullinan satellite diamonds after cutting, seem to have been overlooked by all the available literature, and hence the use of the word "perhaps" to qualify the above statement. Tiny, small touches of the craftsman – the artist cutter – are beneficial! 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List may not be entirely comprehensive as some diamonds have long, complicated stories attached to the De Beers 1929! Depression of the diamond Syndicate was the forerunner of today 's Central Selling Organization, that controls much the. King Edward VII to any experienced cutter who would attempt to cut polished... World 's trade in diamonds and accomplished cutters in the world 15th-largest rough diamond. 1986... Gabi Tolkowsky Examining the Centenary diamond is a 273.85-carat, D-color, internally as well as externlly flawless diamond the! Was a 599-carat top-color rough diamond ever discovered in 2006 1907 to the reigning British,. About, with the difficult task of cutting the stone has been graded internally...