Tips for stone care

Where was the largest diamond found in Russia?

Recently, the ALROSA company extracted a crystal weighing 136,24 carats from the Nyurbinskaya pipe. The diamond has already been recognized as one of the largest among those discovered at the Nyurba mining and processing plant. Please note that the precious find has not yet been named. YakutiaMedia news agency decided to recall all the largest diamonds found on the territory of the republic and presents to the attention of readers – 15 large finds from the depths of Yakutia. “Twenty-sixth Congress of the CPSU” The diamond top is headed by the legendary diamond “XXVI Congress of the CPSU,” which was found in the Mir kimberlite pipe in 1980. The weight of the diamond found was 342,5 carats. The color of the diamond is lemon yellow. The diamond was named in honor of the XXVI Congress of the CPSU. The “XXVI Congress” diamond was returned. Mined in Yakutia: TOP-15 largest diamonds. Photo: ALROSA Nowadays the “XXVI Congress” diamond is kept by the Diamond Fund of the Moscow Kremlin and is the largest diamond in the collection of the Kremlin Diamond Fund. The Yakut diamond is in 25th place among the largest and most famous diamonds in the world. “Alexander Pushkin” The second largest diamond, the Alexander Pushkin, weighing 320,65 carats, was mined in 1989. At first they wanted to give the diamond the name “Indestructible Soviet Union,” but a crack was soon discovered. It turned out that the diamond was a fragment of a larger stone. “Creator” The third largest diamond mined in Yakutia (and in Russia as a whole) is the “Creator” crystal. The diamond weighs 298,48 carats. A unique find was made in the Anabar region of Yakutia at a placer deposit developed by OJSC Nizhne-Lenskoye. In September 2006, the diamond in a red box was delivered to Moscow in the strictest secrecy under the protection of FSO special communications service officers. “The Creator” was purchased by Gokhran for the State Fund for the Diamond Fund of the Russian Federation. Mined in Yakutia: TOP-15 largest diamonds. Photo: ALROSA “Free Russia” In fourth place is a diamond called “Free Russia”. A large diamond weighing 241,88 carats was mined on September 28, 1991 at the Sytykanskaya kimberlite pipe. The workers of Yakutia presented it to Boris Yeltsin in connection with the signing of the Decree of the President of Russia “On the powers of the Yakut-Sakha Republic to dispose of the natural resources of the republic.” Diamond weighing 241,21 carats The mass of the diamond mined on June 241,21, 16 from the Nyurbinskaya pipe is 2016 carats. The find does not yet have a name, but it is one of the largest diamonds mined in Russia and the third largest among those discovered at the Nyurbinsky mining and processing plant. Mined in Yakutia: TOP-15 largest diamonds. Photo: ALROSA The crystal is translucent, with a grayish tint, and measures 38,64 x 27,34 x 25,46 mm. There are traces of dissolution on the surface in the form of etching channels and cavities. There are large cracks in the intermediate and peripheral zones, one of them with ferruginization. Inclusions of graphite sulfides are present throughout the volume. “City of Vilyuysk” At the end of September 2013, a diamond weighing 235,16 carats was discovered in the depths of the Yubileinaya kimberlite pipe, preliminary estimated at $1,5-2 million. The diamond is a cleaved crystal in the shape of an octahedron, transparent, yellowish in color, with minor graphite-sulfide inclusions in the peripheral zone. “Star of Yakutia” In seventh place in our ranking is the “Star of Yakutia” diamond, which was found in Yakutia in 1973. This diamond weighed 232,1 carats. All large diamonds found in the USSR were personally delivered to the Chairman of the Council of Ministers of the USSR A.N. Kosygin. Only in the case of the “Star of Yakutia” diamond, Kosygin was on vacation, so initially the diamond received the name “50 Years of Aeroflot” and even under this name managed to appear in the famous London catalog from De Beers. However, upon returning from vacation, Kosygin insisted that the diamond be given a different name – “Star of Yakutia”. So De Beers had to redo his catalogue. Nowadays this famous diamond bears the official name – “Star of Yakutia” and is stored in the Kremlin’s Diamond Fund. The crystal is also the twenty-ninth largest diamond among the largest diamonds in the whole world. “Boris Eifman” On July 22, 2016, ALROSA mined a large diamond weighing 214,65 carats. The crystal was mined at the Nyurbinskoye placer deposit and was named after the famous choreographer Boris Eifman in honor of his 70th birthday. “Premier” In 1991, the Mir pipe gave Yakutia a diamond weighing 210,55 carats, called Premier. “Children of Asia” On July 6, 2016, a diamond weighing 207,29 carats was mined at the Zarnitsa pipe of the Udachny Mining and Processing Plant (GOK). The gem-quality stone, with dimensions of 38 x 37 x 18 mm, is the largest in the entire history of the diamond-bearing Zarnitsa. The mined diamond is a transparent crystal of a transitional shape with a slight relief of the edges. The large diamond was given the name of the “Children of Asia” games, which started for the sixth time in Yakutsk on the day of the discovery – July 6, 2016. “60 years of the Komsomol” Mined in Yakutia: TOP-15 largest diamonds. Photo: ALROSA On November 2, 1978, a diamond weighing 200,74 carats was found on the Mir pipe. It was given the name “60 years of the Komsomol”. “Star of the North” In 12th place is another star. The “Star of the North” diamond weighing 195.0 carats was mined on August 22, 1977 at the Mir pipe. “Hockey player Anatoly Firsov” The “Hockey Player Anatoly Firsov” diamond, weighing 181,59 carats, was named in memory of the outstanding athlete, three-time Olympic champion, seven-time European champion, eight-time world champion, nine-time national champion Anatoly Firsov (1941-2000). The diamond was mined on August 31, 2000 at factory No. 14 of the Aikhal mining and processing plant. “2000th anniversary of the Nativity of Christ.” On December 25, 1999, a diamond weighing 14 carats was mined at factory No. 180,17 of the Aikhal Mining and Processing Plant. The diamond is named in honor of the 2000th anniversary of the Nativity of Christ and the emergence of the Christian religion. “60 years of the YASSR” The TOP-15 large stones found on the territory of Yakutia are closed by a diamond weighing 173,70. The crystal was discovered on June 18, 1982 at the Udachnaya pipe. It was named in honor of the 60th anniversary of the YASSR. It should be noted that on the night of October 20-21, 2012, employees of the Aikhal Mining and Processing Plant of AK ALROSA extracted a diamond weighing 888,15 carats. The crystal was recovered from the depths of the Yubileiny pipe. Unfortunately, the diamond found was of technical quality (not jewelry quality). RELATED LINKS: 180 years ago, in 1829, the first diamond was found in Russia. This happened during gold panning at the Krestovozdvizhensky mines in the Urals. Then diamonds were discovered in other places on both slopes of the Ural ridge. The discoveries of Ural diamonds gave rise to the English geologist R.I. Murchison to inform the whole world that in the depths of Russia there is everything, even diamonds. True, despite ongoing searches, significant diamond deposits could not be found in our country for a long time. Russia’s breakthrough into the number of diamond-mining countries occurred only in the 50-60s. XX century and was associated with the discovery of Yakut deposits. In the 1940th century, the scientific and technological revolution dramatically expanded the scope of diamond use. It began to be used not only for jewelry purposes, but also as an indispensable tool in instrument making, radio electronics, optics and other industries. Without diamond drills and drills, without cutting and abrasive tools for particularly precise processing, without diamond powders and pastes for grinding parts, modern production has become unthinkable. Therefore, by the end of the XNUMXs, the need arose to significantly expand diamond mining. In addition, the discovery of diamond deposits would make it possible to export jewelry stones and receive foreign currency. In 1938, the Council of People’s Commissars of the USSR decided to create its own diamond base. Geologists were tasked with identifying and studying diamond-bearing areas of the country. The first systematic searches for diamonds on the territory of the USSR were organized on the western slope of the Middle Urals. However, the numerous diamond-bearing placers identified here turned out to be poor in diamond content and relatively small in reserves. Industrial diamond mining, organized in the Ural placers during World War II, provided only a small portion of the country’s need for this important raw material. It became obvious that, despite the high quality of Ural diamonds, it was necessary to look for richer deposits in other areas of our country. It was known that all large diamond-bearing areas of the world are confined to platforms. The classic country for primary diamond deposits is South Africa. Soviet geologists found that of all the regions of the USSR, the Siberian Platform has the greatest similarity with South Africa in geological structure, covering a vast territory located mainly between the Yenisei and Lena rivers. This similarity allowed our scientists to suggest that the Siberian Platform may be diamond-bearing. This forecast was made back in 1940, but the war prevented search work in this inaccessible area. In the fall of 1948, diamond searches began in Yakutia. On August 7, 1949, the geological party of G.H. Fainstein found the first diamond in the Suntar region. However, after this discovery, another five long years passed before geologists were able to discover the first kimberlite pipe. Dozens of placers have already been discovered, there are already hundreds of diamonds extracted from them, but primary deposits have not been found. In the summer of 1953, geologists N.N. Sarsadskikh and L.A. Popugaeva discovered a frequent companion of diamond – the mineral pyrope. Associate Professor of Leningrad State University A.A. Kukharenko formulated the main principles of the method of searching for primary diamond deposits using diamond satellite minerals – pyropes. Understanding the processes of formation of kimberlite bodies opened up new paths for theoretical research and made it possible to make significant adjustments to the predictive assessment of areas of bedrock and placer diamond bearing on the Siberian Platform. The introduction of this technique led to the discovery of numerous kimberlite bodies. On August 21, 1954, geologist L.A. Popugaeva, guided by the method of searching for primary diamond deposits using pyropes, discovered the first kimberlite pipe in the Soviet Union and gave it the name “Zarnitsa”. A year later, the Amakinsk expedition team of Yu.I. Khabardin found the “Mir” kimberlite pipe, and a group of geologists led by V.N. Shchukin found the “Udachnaya” pipe. The discovery of rich diamond deposits in Western Yakutia was an outstanding event in the history of the domestic geological survey and allowed Russia to become one of the leading countries in the extraction of this wonderful stone.

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