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Topic: Synthetic diamond

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In the News (Sun 24 Jun 18)

  NOVA | Transcripts | The Diamond Deception | PBS
MARTIN RAPAPORT: A synthetic diamond by itself is no problem, as long as the industry maintains rules of detection and disclosure, that means scientifically, gemologically, the industry is able to detect that a certain type of diamond is a synthetic, is not a natural stone.
Synthetic diamonds and natural diamonds, because the nature of the defects are different in both types of diamond, emit different types of light, different types of spectra because the defects are different.
If you rotate the diamond round, you see these octahedral growths sectors have grown larger, and at the same time that initial small cubic sector has grown much larger as well, so this very simple growth sector structure is indicative of a near colorless synthetic diamond.
www.pbs.org /wgbh/nova/transcripts/2703diamond.html   (6159 words)

 Synthetic Diamonds: Diamond Source of Virginia Diamond Loose Diamonds Education
Diamond was discovered to be carbon in 1796, and it took more than 150 years from that time until a method of diamond synthesis was invented.
Diamond labs in Belgium and elsewhere that traditionally analyzed and certified diamonds larger than one carat for color and clarity are now being asked to distinguish between natural and synthetic or artificially colored diamonds.
While synthetic diamonds are expected to have a market niche of their own in the jewelry industry, the big payoff is expected to be in industrial technologies.
www.diamondsourceva.com /Education/ArtificialDiamonds/synthetic-diamonds.asp   (1430 words)

 US Patent 5,861,349 Synthetic diamond-containing material and method of obtaining it
A synthetic diamond bearing material according to claim 1, wherein a diameter of the pores is within 7.5 to 12.5 nm.
The particle size of the obtained diamond is 0.3 to 0.06 nm, the CSR size is 4 to 6 nm, the particle shape is round.
Porous structure of the aggregates of diamond particles with the volume of the pores from 0.6 to 1.0 cm.sup.3 /g and pore diameter 7.5 to 12.5 nm which permits of using lees mass of the claimed material with the same volume proportion of the diamond-bearing material as against that of the prior-art material.
www.ultradiamondtech.com /publicationspatentus5861349.html   (3960 words)

 red synthetic diamond
The nickel /iron inclusions in this synthetic diamond (courtesy DeBeers) are approximately diamond clarity grade SI The responses in Figs 47, 48 and 49 are positive for synthetic diamond.
In a synthetic diamond, such a sizeable inclusion would show a very dramatic attraction response to a rare earth magnet as in Additionally, the synthetic's inclusion would normally be silvery metallic in appearance.
These Japanese synthetic diamonds may be identified by their fluorescence, grain lines aligned to cube faces, and strain birefringence patterns.
www.scotgem.demon.co.uk /redsyndia.html   (915 words)

 Diamonds | American Museum of Natural History
The GE team used the press to grow diamonds prior to the announcement of diamond synthesis on February 15, 1955.
GE went on to become the largest producer of synthetic diamond; De Beers follows, with many other manufacturers also contributing to the annual output of synthesized diamonds.
Small diamonds are placed at the bottom of the active part of the capsule as seeds for the growth of large diamonds.
www.amnh.org /exhibitions/diamonds/growing.html   (386 words)

 Wired 11.09: The New Diamond Age
We are in Antwerp, Belgium, in Weingarten's marbled and gilded living room on the edge of the city's gem district, the center of the diamond universe.
Nearly 80 percent of the world's rough and polished diamonds move through the hands of Belgian gem traders like Weingarten, a dealer who wears the thick beard and fl suit of the Hasidim.
Diamond microchips, on the other hand, could handle much higher temperatures, allowing them to run at speeds that would liquefy ordinary silicon.
www.wired.com /wired/archive/11.09/diamond.html   (1226 words)

 Diamond Microchips Synthetic Diamonds Diamond MicroProcessors Moore's Law Wafers Man Made Diamonds
The coloring of many diamonds is so faint that an unpracticed observer, unless he is able to compare such a stone with an absolutely colorless diamond or to place it against a background of pure white, will fail to recognize that the stone is colored at all.
Diamonds of a fine green color are distinctly rare, only a few examples being known; the same may be said of red diamonds and, even more emphatically, of blue diamonds.
Several examples of beautifully transparent rose-red diamonds are known; such, for instance, as that of the fifteen-carat stone belonging to the Prince of Riccia, a few smaller specimens in the treasury at Dresden, and a thirty-two-carat stone, the most beautiful rose-red known, in the treasury of Vienna.
diamond-microchips.com   (11905 words)

 GIA: Gems & Gemology: Synthetic Diamonds Book
Synthetic diamonds are one of the most important challenges facing gem and jewelry professionals today.
The first documented production of very tiny, industrial-quality synthetic diamonds in the mid-1950s marked the culmination of more than a century of scientific research to create the necessary conditions for successful diamond growth in the laboratory.
This event was greeted at the time as a tremendous technological achievement; and within a few years, the production of "man-made" diamonds was commercialized for important uses in cutting, grinding, and polishing operations and in specialized tools for the working of hard materials.
www.gia.edu /gemsandgemology/29630/synthetic_diamonds_book.cfm   (294 words)

 Diamond Making Synthetic - discover the world of diamonds
Synthetic Diamondsrmation science and technology to produce perfect synthetic diamonds in an array of colours and sizes.
Diamond News: Diamonds are forever, and now so is Angus the cat pressed into almost a one-half carat synthetic diamond begins to make a weird kind of sense.
Synthetic Diamond Share the identical optical, chemical provide a solution to the cost of a diamond, making it more affordable.
www.diamond-find.com /diamonds/diamond-making-synthetic.html   (589 words)

 Synthetic Diamond Nozzles   (Site not responding. Last check: 2007-10-21)
Diamond’s extreme wear resistant, thermal, and chemical properties make it an ideal material of choice for orifices and nozzles operating in high velocity or harsh production environments.
Apart from this improvement the synthetic diamond does not contain cracks or other imperfections in its structure, and as a result implosion events are eliminated.
“Diamond is already the preferred material of choice in many demanding industrial applications and it is rapidly replacing conventional materials in many harsh environments.
www.e6.com /e6/page.jsp?pageid=1144   (285 words)

 Natural & Synthetic Diamond Powder from READE
Synthetic diamonds accounts for more than 1/2 the total worldwide production.
Naturally mined diamonds, synthetic diamonds and single crystal diamonds are available.
Purities are available from as high of a typical purity of 99.99% down to lower purity recycled diamonds.
www.reade.com /Products/Carbons/diamond.html   (205 words)

 Synthetic Diamond Testing Project
Our good friend and amazing Physics student Jamie Portsmouth was thinking of coming to Boston from England over the summer and was looking for something to keep him in beer over the summer.
Synthetic diamonds of gem quality were just appearing and there was considerable worry over them in the gem world.
Won't lose its ability to detect diamonds while testing a large number of stones at a time.
dendritics.com /scales/synthetic-diamond-project.asp   (301 words)

 Diamond Education - Synthetic Diamonds
A synthetic diamond is a rock that has all the properties (durability, hardness, refractive index, etc) of a natural diamond but was made by man. Not to be confused with simulants (those that look similar to a diamond but don’t have the same properties) like glass, cubic zirconia, moissanite.
I think I can figure out how to grow a diamond cheaper than it costs to find one.” The problem was very few people were listening and those that did just scoffed.
The initial ground work for synthetic diamonds began for us with trials that had been done in Russia and the University of Florida in 1996.
www.thediamondguy.com /diamond_education/articles/reference/synthetics.html   (1231 words)

 buy apollo synthetic diamond -- buy apollo synthetic diamond   (Site not responding. Last check: 2007-10-21)
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www.apollofo.com /buyapollosyntheticdiamond   (2382 words)

 Synthetic Diamond Production Expands; Is It A Threat?
We have long stated that most women will not accept a synthetic as a symbol of eternal love.
While Gemesis promises to do everything on the level, even to the point of laser-inscribing each diamond, unscrupulous people can erase the inscription and fool people.
Even General Electric, which probably has the capability to mass produce synthetics, doesn’t seem too interested in turning them into a business.
www.diamondregistry.com /News/2002/synthetic.htm   (327 words)

 Synthetic Diamond Film (SDF 22/6)   (Site not responding. Last check: 2007-10-21)
Synthetic Diamond Film, (SDF 22/6) is at the forefront of the Physical Vapor Deposition (PVD) coating process.
Offering ultra-high hardness, and a low coefficient of friction, to significantly improve the wear resistance of tools and components in a wide range of applications.
SDF 22/6 enables existing tools and components to be readily coated, with a uniform 4 micron thick diamond film, without the need for pre-coating modification, or re-working after coating.
www.diamond-like-carbon.com /sdf.htm   (429 words)

 Synthetic Diamond
Find Synthetic Diamonds and many other businesses in and around your area at MonsterLocal.
Diamonds in the news: Leading diamond executives from New York to visit Dubai.
Excerpt:A delegation of leading diamond executives from New York is scheduled to visit the Dubai Metals and...
www.diamond-jewelery.com /Synthetic-Diamond.html   (207 words)

 Synthetic Diamond Powder, China Synthetic Diamond Powder products- China Synthetic Diamond Powder Manufacturer, supplier
Synthetic Diamond Powder, China Synthetic Diamond Powder products- China Synthetic Diamond Powder Manufacturer, supplier
JinLiHeng New Material CO., LTD from PR CHINA is an enterprise specialized in PDC (Synthetic Polycrystalline Diamond), Synthetic diamond crystal, Synthetic diamond powder, Grinding wheels, diamond paste and manufacturing super hard materials which are all use for diamond polishing.
Your use of this website is subject to, and constitutes acknowledgement and acceptance of our Terms and Conditions.
www.made-in-china.com /china-products/productviewGcJmjPETuQNB/Synthetic-Diamond-Powder.html   (198 words)

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