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Gemesis
Gemesis Inc. was a privately held company located in New York City. The company grew synthetic diamonds using proprietary technology. Gemesis had the world's largest facilities for both the high-pressure high-temperature (HPHT) and chemical vapor deposition (CVD) diamond production methods. Using these methods, Gemesis produced high-quality colorless and fancy color diamonds that were offered for sale at 20–30% lower prices than mined natural diamonds of similar quality (and, from some suppliers, lower prices than that). By about 2010, Gemesis was the principal producer of gem quality lab created diamonds and jewelry. Gemesis started marketing its diamonds by cutting and polishing them and then selling them to jewelry retailers on the wholesale market. In 2012, the company began also selling polished diamonds and diamond jewelry directly to consumers through its website. The company was founded by Carter Clarke Jr., a retired United States Army brigadier general and son of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synthetic Diamond
Lab-grown diamond (LGD; also called laboratory-grown, laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond) is diamond that is produced in a controlled technological process (in contrast to naturally formed diamond, which is created through geological processes and obtained by mining). Unlike diamond simulants (imitations of diamond made of superficially-similar non-diamond materials), synthetic diamonds are composed of the same material as naturally formed diamonds – pure carbon crystallized in an isotropic 3D form – and share identical chemical and physical properties. Numerous claims of diamond synthesis were reported between 1879 and 1928; most of these attempts were carefully analyzed but none was confirmed. In the 1940s, systematic research of diamond creation began in the United States, Sweden and the Soviet Union, which culminated in the first reproducible synthesis in 1953. Further research activity yielded the discoveries of HP ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synthetic Diamond
Lab-grown diamond (LGD; also called laboratory-grown, laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond) is diamond that is produced in a controlled technological process (in contrast to naturally formed diamond, which is created through geological processes and obtained by mining). Unlike diamond simulants (imitations of diamond made of superficially-similar non-diamond materials), synthetic diamonds are composed of the same material as naturally formed diamonds – pure carbon crystallized in an isotropic 3D form – and share identical chemical and physical properties. Numerous claims of diamond synthesis were reported between 1879 and 1928; most of these attempts were carefully analyzed but none was confirmed. In the 1940s, systematic research of diamond creation began in the United States, Sweden and the Soviet Union, which culminated in the first reproducible synthesis in 1953. Further research activity yielded the discoveries of HP ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HPHT
Lab-grown diamond (LGD; also called laboratory-grown, laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond) is diamond that is produced in a controlled technological process (in contrast to naturally formed diamond, which is created through geological processes and obtained by mining). Unlike diamond simulants (imitations of diamond made of superficially-similar non-diamond materials), synthetic diamonds are composed of the same material as naturally formed diamonds – pure carbon crystallized in an isotropic 3D form – and share identical chemical and physical properties. Numerous claims of diamond synthesis were reported between 1879 and 1928; most of these attempts were carefully analyzed but none was confirmed. In the 1940s, systematic research of diamond creation began in the United States, Sweden and the Soviet Union, which culminated in the first reproducible synthesis in 1953. Further research activity yielded the discoveries of H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Synthetic Diamond Manufacturers
Synthetic diamonds are produced via high pressure, high temperature (HPHT) or chemical vapor deposition (CVD) technology. These diamonds have numerous industrial and commercial uses including cutting tools, thermal conductors and consumer diamond gemstones. Gemstone diamond producers * Apollo Diamond (defunct, assets sold in 2011 to Scio Diamond) * ALTR Created Diamonds * De Beers (Lightbox) * Diamond Foundry * Gemesis (now a non-producing reseller called Pure Grown Diamonds) * Scio Diamond Technology Corporation (colorless) * Tairus * WD Lab Grown Diamonds Industrial diamonds *Element Six *Morgan Technical Ceramics (as "Diamonex") * Scio Diamond Technology Corporation * Sumitomo Electric Industries is a manufacturer of electric wire and optical fiber cables. Its headquarters are in Chūō-ku, Osaka, Japan. The company's shares are listed in the first section of the Tokyo, Nagoya Stock Exchanges, and the Fukuoka Stock Exchange. In the perio ... References {{reflist * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Privately Held Company
A privately held company (or simply a private company) is a company whose shares and related rights or obligations are not offered for public subscription or publicly negotiated in the respective listed markets, but rather the company's stock is offered, owned, traded, exchanged privately, or Over-the-counter (finance), over-the-counter. In the case of a closed corporation, there are a relatively small number of shareholders or company members. Related terms are closely-held corporation, unquoted company, and unlisted company. Though less visible than their public company, publicly traded counterparts, private companies have major importance in the world's economy. In 2008, the 441 list of largest private non-governmental companies by revenue, largest private companies in the United States accounted for ($1.8 trillion) in revenues and employed 6.2 million people, according to ''Forbes''. In 2005, using a substantially smaller pool size (22.7%) for comparison, the 339 companies on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chief Executive Officer
A chief executive officer (CEO), also known as a central executive officer (CEO), chief administrator officer (CAO) or just chief executive (CE), is one of a number of corporate executives charged with the management of an organization especially an independent legal entity such as a company or nonprofit institution. CEOs find roles in a range of organizations, including public and private corporations, non-profit organizations and even some government organizations (notably state-owned enterprises). The CEO of a corporation or company typically reports to the board of directors and is charged with maximizing the value of the business, which may include maximizing the share price, market share, revenues or another element. In the non-profit and government sector, CEOs typically aim at achieving outcomes related to the organization's mission, usually provided by legislation. CEOs are also frequently assigned the role of main manager of the organization and the highest-ranking offic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wired (magazine)
''Wired'' (stylized as ''WIRED'') is a monthly American magazine, published in print and online editions, that focuses on how emerging technologies affect culture, the economy, and politics. Owned by Condé Nast, it is headquartered in San Francisco, California, and has been in publication since March/April 1993. Several spin-offs have been launched, including '' Wired UK'', ''Wired Italia'', ''Wired Japan'', and ''Wired Germany''. From its beginning, the strongest influence on the magazine's editorial outlook came from founding editor and publisher Louis Rossetto. With founding creative director John Plunkett, Rossetto in 1991 assembled a 12-page prototype, nearly all of whose ideas were realized in the magazine's first several issues. In its earliest colophons, ''Wired'' credited Canadian media theorist Marshall McLuhan as its "patron saint". ''Wired'' went on to chronicle the evolution of digital technology and its impact on society. ''Wired'' quickly became recognized ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blood Diamond
''Blood Diamond'' is a 2006 American political war action thriller film directed and co-produced by Edward Zwick and starring Leonardo DiCaprio, Jennifer Connelly, and Djimon Hounsou. The title refers to blood diamonds, which are diamonds mined in war zones and sold to finance conflicts, and thereby profit warlords and diamond companies around the world. Set during the Sierra Leone Civil War of 1991–2002, the film depicts a country torn apart by the struggle between government loyalists and insurgent forces. It also portrays many of the atrocities of that war, including the rebels' amputation of civilians' hands to discourage them from voting in upcoming elections. The film's ending, in which a conference is held concerning blood diamonds, refers to a historic meeting that took place in Kimberley, South Africa, in 2000. It led to development of the Kimberley Process Certification Scheme, which sought to certify the origin of rough diamonds in order to curb the trade in con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Impact Of Mining
Environmental effects of mining can occur at local, regional, and global scales through direct and indirect mining practices. The effects can result in erosion, sinkholes, loss of biodiversity, or the contamination of soil, groundwater, and surface water by the chemicals emitted from mining processes. These processes also affect the atmosphere from the emissions of carbon which have an effect on the quality of human health and biodiversity. Some mining methods (lithium mining, phosphate mining, coal mining, mountaintop removal mining, and sand mining) may have such significant environmental and public health effects that mining companies in some countries are required to follow strict environmental and rehabilitation codes to ensure that the mined area returns to its original state. Erosion Erosion of exposed hillsides, mine dumps, tailings dams and resultant siltation of drainages, creeks and rivers can significantly affect the surrounding areas, a prime example being the g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jewelers Of America
The Jewelers of America (JA) is a trade association of professionals in the United States jewelry Jewellery ( UK) or jewelry ( U.S.) consists of decorative items worn for personal adornment, such as brooches, rings, necklaces, earrings, pendants, bracelets, and cufflinks. Jewellery may be attached to the body or the clothes. From a w ... industry. The organization was formed in 1906. Jewelers of America produces a Code of Professional Practices for use by those in the industry. The association also provides information to help consumers learn about jewelry. In 2009, the Jewelers of America formed a strategic alliance with Jewelers Mutual Insurance Company to enhance services to the industry. National Jeweler In January 2015, Jewelers of America acquired ''National Jeweler'' from Emerald Expositions.Bates, Bob"Jewelers of America Buys, Will Run National Jeweler", ''JCKonline.com'', 12 January 2015. Retrieved on 07 February 2016. ''National Jeweler'' magazine was found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Wire (India)
''The Wire'' is an Indian nonprofit news and opinion website which publishes in English, Hindi, Marathi, and Urdu. It was founded in 2015 by Siddharth Varadarajan, Sidharth Bhatia, and M. K. Venu. The publication's reporters have won several national and international awards, including three Ramnath Goenka Excellence in Journalism Awards and the CPJ International Press Freedom Award. It has also been subject to several defamation suits by businessmen and politicians. History Siddharth Varadarajan resigned from his position as editor at ''The Hindu'' citing the return of the editorship of the paper to being family run in 2013. On 11 May 2015, ''The Wire'' was started by Siddharth Varadarajan, Sidharth Bhatia and M. K. Venu who had initially funded the website. Later, it was made part of the Foundation for Independent Journalism, a non-profit Indian company. The Independent and Public Spirited Media Foundation has provided ''The Wire'' with funding as well. Varadarajan cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond Trading Company
The Diamond Trading Company (DTC) is the rough diamond sales and distribution arm of the De Beers Family of Companies. The DTC sorts, values and sells about 35% of the world’s rough diamonds by value. The DTC has a combination of wholly owned and joint venture operations in South Africa (DTCSA), Botswana (DTCB), Namibia (NDTC) and the United Kingdom (DTC). The DTC sells diamonds that are sourced primarily from De Beers' mining operations in South Africa and Canada, and through its partnerships with the governments of Botswana, Namibia and Tanzania. Sorters in London, Kimberley, Windhoek and Gaborone sort these diamonds into approximately 12,000 different categories based on size, shape, quality and colour. DTC clients are known as Sightholders, and the selection process is based on the outcome of the Supplier of Choice (SoC) Sightholder application and assessment process. DTC Sales in 2009 were $3.84bn. The DTC also develops and produces diamond technology, which ensures cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
