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Topic: Diamond simulant

	Diamond - Wikipedia, the free encyclopedia
		Diamond is the hardest known naturally occurring material, scoring 10 on the relative Mohs scale of mineral hardness and having an absolute hardness value of between 167 and 231 gigapascals in various tests.
		Diamonds have also rarely been found in deposits left behind by glaciers (notably in Wisconsin and Indiana); however, in contrast to alluvial deposits, glacial deposits are not known to be of significant concentration and are therefore not viable commercial sources of diamond.
		Diamonds which are not cut to the specifications of Tolkowsky's round brilliant shape (or subsequent variations) are known as "fancy cuts." Popular fancy cuts include the baguette (from the French, resembling a loaf of bread), marquise, princess (square outline), heart, briolette (a form of the rose cut), and pear cuts.
	en.wikipedia.org /wiki/Diamond (8443 words)

	Articles - Diamond simulant (Site not responding. Last check: 2007-11-06)
		Simulants are distinct from synthetic diamond, which unlike simulants have material properties identical to those of natural diamond.
		Diamond's hardness also is visually evident (under the microscope or loupe) by its highly lustrous facets (described as adamantine) which are perfectly flat, and its crisp, sharp facet edges.
		Diamonds are usually cut into brilliants to bring out their brilliance, the amount of light reflected back to the viewer, and fire, the degree of colorful prismatic flashes seen.
	www.zdiamond.net /articles/Diamond_simulants (4927 words)

	Diamond Simulant Engagement Rings :: Diamond Engagement Rings by loveanddiamonds.com (Site not responding. Last check: 2007-11-06)
		Is a diamond simulant recently introduced on the market and has properties much closer, almost similar to those of diamonds, so close that, unless expert laboratory analysis is made, it can be taken for a diamond.
		Diamond simulant engagement rings may be a cheaper alternative but they do reveal their real nature at analysis.
		Nevertheless, simulants can be successfully used as side stones or baguettes — especially moissanite — due to the fact that smaller diamonds often tend to be low in clarity, so this replacement would result in a plus for the final effect.
	www.loveanddiamonds.com /learn/diamond-simulant-engagement-rings.html (597 words)

	Diamonique - A Branded Diamond Simulant
		Diamonique is a registered trade mark, belonging to QVC Inc., and the brand name they choose to use for cubic zirconia, a popular diamond simulant.
		There have been many natural and synthetic stones used to simulate diamond, these include glass, quartz, rock crystal (colourless quartz), natural rutile, synthetic rutile, natural sapphire, synthetic sapphire, natural spinel, synthetic spinel, strontium titanate, yttrium aluminium garnet (Y.A.G.), cubic zirconia, and synthetic moissanite.
		Diamond Glossary - An A to Z of Diamonds
	www.24carat.co.uk /diamonique.html (275 words)

	Diamonds (Site not responding. Last check: 2007-11-06)
		Diamond is made of carbon (C), yet the stable form (polymorph) of carbon at the Earth's surface is graphite.
		Diamond is the hardest gem on the MOHS harness scale and graphite (also made from carbon atoms) is the softest!
		The explanation is found in the fact that in diamond the carbon atoms are linked together into a three-dimensional network whereas in graphite, the carbon atoms are linked into sheets with very little to hold the sheets together (thus the sheets slide past each other easily, making a very soft material).
	ist-socrates.berkeley.edu /~eps2/wisc/Lect6.html (1285 words)

	Diamond Simulants- Moissanite to Sapphire..
		A diamond expert is able to discern a loose diamond from a simulant just by eye alone, and is unconcerned with the following tests to separate the various impersonators, but we have included some of the differences for interest.
		Diamond simulant has the same meaning as imitation and refers to any material that has the appearance of diamond but does not posess the characteristics, atomic structure, chemical composition or physical properties of natural diamond.
		Doubly refracting, topaz is separated from diamond by rotating it between crossed nicols in a polariscope.
	www.jewellerycatalogue.co.uk /diamonds/simulants.htm (1191 words)

	Simulated Diamonds, Moissanite, Diamond Simulant (Site not responding. Last check: 2007-11-06)
		The appearance of Simulated Diamonds is guaranteed to last forever.
		Russian Brilliants® is unique, unlike Simulated Diamonds and common cubic zirconia, they are hand cut, facetedPossessing the fire, brilliance and many optical properties of a natural diamond.
		Beautifully hand-cut, Simulated Diamonds is convincingly the closest clone to a natural diamond.
	www.climbingnews.org (301 words)

	JCRS Inland Marine News - February 2002 - Moissanite: A Diamond Simulant
		Diamonds are the most coveted gemstone, so labs have been especially dedicated to creating diamond simulants — fake diamonds, imitations that are cheap to produce and look good enough to pass.
		A diamond of a carat or more should also be accompanied by a Diamond Certificate from an established diamond grading lab, such as the Gemological Institute of America.
		Diamond certificates will be discussed in future issues of IM If you are settling a claim for an expensive diamond and you lack an ACORD >78/79 appraisal and/or diamond certificate, proceed carefully.
	jcrs.com /newsletters/2002/2002_02.htm (959 words)

	BetterThanDiamond.com Announces Another Scientific First for its Asha Diamond Simulant
		The diamond coating was applied via a proprietary negative ion beam sputter process.
		BetterThanDiamond.com continues to actively pursue R&D to ensure that the Asha diamond simulant remains the premier choice for those consumers seeking the ultimate in diamond beauty at 1/25th the typical cost.
		diamond simulant is the only hand-cut H&A diamond simulant available, and has received very favorable reviews from every gemologist who has reviewed them.
	www.internetnewsbureau.com /archives/2001/dec01/betterthandiamonds.html (405 words)

	BetterThanDiamond.com Announces First Hybrid Diamond Simulant to Use a Man-Made Form of Diamond
		Continuing with that quest, BetterThanDiamond.com is pleased to announce that after nearly one year of research, the newest generation of the Asha(TM) diamond simulant is now a hybrid man-made gem utilizing a colorless, man-made form of diamond known as DLC, or Diamond-Like Carbon.
		The addition of the D-color, colorless DLC layer provides the Asha with unparalleled durability, crispness of faceting and dispersion, and creates a new category in diamond simulants -- one that blurs the line between natural diamond and simulant because it incorporates the best aspects of both.
		BetterThanDiamond.com is the creator of the man-made Asha gem, a premiere diamond simulant that many gemologists have called the best available on the market today, and the first and only to employ a form of man-made diamond.
	www.ereleases.com /pr/2002-01-14a.html (355 words)

	Cultivated Diamonds, Moissanite- World's Best Diamond Simulant (Site not responding. Last check: 2007-11-06)
		Our purpose is to present you with the best alternative to a natural diamond along with pressure free education and guidance to buying the exact gem or setting of your choice.
		Gerry Hauser, president of Hadar, founder of La Jolla Diamond, Co and Heritage Estate Buyers, Inc. is recognized as an authority on diamonds and diamond simulants.
		Hauser was overly impressed with the hand cutting and faceting of these particular diamond simulants.
	www.valeriegold.com /about_russian_brilliants.html (432 words)

	Unmasking Synthetic Moissanite
		Retailers who fear the new diamond simulant moissanite might pass through their hands undetected can breathe a sigh of relief.
		The $525 Tester Model 590 was designed to easily and quickly distinguish synthetic moissanite from diamonds, says Jeff Hunter, CEO of C3 Inc., creator of the diamond simulant and the testing device.
		Conventional diamond testers check for thermal conductivity and are useful in separating diamond from simulants such as cubic zirconia, corundum, glass, synthetic rutile and zircon.
	www.professionaljeweler.com /archives/articles/1998/may98/0598dg2.html (268 words)

	Diamond Simulants
		In the 1980s reports emerged from Russia suggesting that diamond could be formed from the vapour phase at relatively low temperatures and pressures.
		Polycrystalline diamond can be grown by a number of different CVD techniques, including microwave plasma assisted chemical vapour deposition, hot filament deposition, plasma jet deposition and combustion flame deposition.
		Gem quality is now on the market in the UK, and the first synthetic diamond sold as a real (natural) stone has been spotted in a UK laboratory.
	www.jewellerycatalogue.co.uk /diamonds/simulants_info.php (1322 words)

	CZ - C.Z. - Cubic Zirconia
		Cubic zirconia, often abbreviated to CZ, is a synthetic stone used as a diamond simulant.
		To create a ring or other article of jewellery which looks realistically like diamond jewellery, it is necessary to use a real diamond mount, and to have the stones properly set, rather than skimp on the quality of the setting work.
		Other diamond simulants include glass, often known as "paste", white sapphire, both natural and synthetic, rock crystal (colourless quartz), spinel, both natural and synthetic, colourless sapphire, both natural and synthetic, YAG (yttrium aluminium garnet), strontium titanate, and the most recent moissanite.
	www.18carat.co.uk /cubiczirconia.html (764 words)

	Moissanite
		I agree that it does not perform as a diamond when placed right next to a diamond but alone it is still beautiful in its own right.
		A big part of the problem with it is that it being marketed as a diamond simulant it has some good qualities all its own that is being held back by the stigma of the marketing.
		A diamond simulant can be anything from glass to a wide variety of transparent natural or man-made minerals.
	www.pricescope.com /diamonds/x18653.htm (1808 words)

	Fake Diamonds, Moissanite, Diamond Simulant (Site not responding. Last check: 2007-11-06)
		The appearance of Fake Diamonds is guaranteed to last forever.
		Russian Brilliants® has a written lifetime guarantee not to fog or yellow and are considered the best Fake Diamonds by many gemologists.
		Beautifully hand-cut, Fake Diamonds is convincingly the closest clone to a natural diamond.
	www.belimbing.com /security.html (138 words)

	Diamond Simulant, Moissanite, Russian Brilliants (Site not responding. Last check: 2007-11-06)
		Diamond Simulant with optical properties of natural diamond
		Russian Brilliants® is a laboratory grown diamond simulant.
		Unlike a naturally formed diamond, CZ components are purer and the molecules gather in ideal conditions.
	www.slashtco.com (317 words)

	Diamonds Simulants
		This is however unable to distinguish between diamond and the new simulant Moissanite, and can occasionally fool the inexperienced appraiser.
		Simulants commonly include Cubic Zirconia, Colour less Synthetic Corundum (sapphire), Synthetic Spinel, Strontium Titanate, Yttrium Aluminium Garnet (YAG), Gadolinium Gallium Garnet (GGG), and Glass (Paste).
		Synthetic and simulant are terminology used by the USBM for laboratory grown gemstones.
	www.1-cultured-diamonds.com /synthetic (395 words)

	Asha® Diamond Simulants: Stud Earrings, Diamond Simulant Earrings, Diamond Stud Earrings
		Asha's structure is very comparable to how cultured pearls are made except this is being done for simulated diamond.
		The result is a simulated diamond with true adamantine lustre and sparkle.
		Diamond beauty is broken down as "White Light return", "Colored Light return" and Scintillation.
	www.betterthandiamond.com (556 words)

	Ideal diamonds (Site not responding. Last check: 2007-11-06)
		Ideal quality diamonds are truly for the connoisseur who enjoys knowing that he has one of the finest things that money can buy.
		An ideal diamond is one that would be free from color additions, blemishes and is perfectly proportioned.
		The "color" of a diamond refers to its degree of "yellowness." The ideal diamond is completely colorless, and therefore it will be the most expensive.
	ideal-diamonds.sitesline.com (1131 words)

	Ideal cut diamonds (Site not responding. Last check: 2007-11-06)
		Diamonds with an Excellent grade will go up in price and are usually found in ideal cut diamonds.
		Diamonds that are graded as "ideal" are cut to reflect the maximum amount of light, and therefore make the diamond as brilliant and sparkling as possible.
		Fire diamonds are cut precisely to proprietary standards that even exceed the strict requirements of the AGS Zero.
	ideal-cut-diamonds.sitesline.com (1261 words)

	Frequently Asked Questions
		The Asha is a form of CZ combined with amorphous diamond, but is tougher than regular cz.
		The final recommendation for your jeweler is only for princess cuts: for princess cuts, we recommend softening the corners of the Asha (via a diamond wheel) where the prongs will contact the stone.
		However, version 5 uses a different coating process which offers a purer form of amorphous diamond, or a higher percentage of diamond bonds (85% diamond bonds vs. version 4 having about 33% diamond bonds).
	www.betterthandiamond.com /faq/faq.01.php (825 words)

	Blanka Diamonds, glossary: diamond simulant.
		Any diamond like material, either natural or artificial, which is marketed as look-alike for a natural diamond.
		A Diamond with a large table and a thin crown height.
		May resemble faint facet junction lines, or cause a grooved or wavy surface, often cross facet junctions.
	www.blankadiamonds.be /diamonds/simulant.htm (77 words)

	BetterThanDiamond.com Announces Another Scientific First for its Asha(TM) Diamond Simulant
		KIRKLAND, WA - December 3, 2001 (INB) -- BetterThanDiamond.com, the creators of the Asha(TM) diamond simulant, is pleased to announce another R&D milestone with the successful creation of the first samples of Asha(TM) coated with a seamless 200-300 Angstrom layer of DLC (diamond-like carbon).
		Hinthorne, a member of our scientific advisory board, deserves credit for starting this research effort after noting that Asha(TM) had a nearly perfect 2:1 unit cell match between it and diamond (thus creating an ideal substrate for diamond coating).
		"Our Asha(TM) diamond simulant is the only hand-cut H&A diamond simulant available, and has received very favorable reviews from every gemologist who has reviewed them.
	www.industrypages.com /artman/publish/Industry_News_217.stm (467 words)

	bidorbuy - bidorbuy Auction 1629065 - R1 - NO RESERVE -STUNNING 60 CARAT TOPAZ & DIAMOND SIMULANT BRACELET - Durban ...
		A 10 carat topaz simulant gemstone is the focal point to this masterpiece.
		The band is made up of 46 pear shaped Russian cz diamonds that are 3/4 carat each along with another 103 round 3mm stones.
		A natural diamond has a hardness factor of 10.
	www.bidorbuy.co.za /jsp/item/Item.jsp?Trade_TradeId=1629065 (382 words)

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