Jan Huts, Senior Diamantaire - CEO Tel: +32 479 28 12 13 E-mail
Antwerp World Diamond Center, Diamond Exchange Diamantkring
Hoveniersstraat 2, BE-2018 Antwerp / Belgium / Europe
This page was last updated on: November 16, 2009
Detect difference between real, original + fake diamonds. Free tests, tricks. Protect against fraud. How reliable are diamond testers Differentiate Simulants, moissanite, CZ, zircons, cultured, treated, synthetic, crystal, glass + others. Tests online explained
Fake or Real Diamonds? Detect for free easily real, original, genuine diamonds from fakes without conventional testers by
Find out the difference between simulants, fake, Moissanite, CZ, zircons, white sapphire, cultured, treated, synthetic, crystals, coated, glass,
DLC coated CZ + other fake stones from a real, original diamond. Two most common simulates are Cubic Zircon, CZ and Moissanite.
Avoid fake Diamond Certificates | Detect HPHT + synthetic diamonds | Conventional Diamond Testers: How reliable are they?
Weight:
Each mineral and synthetic stone has its specific weight and polished / rough diamonds has too! Don’t confuse size and weight!
Simply know the specific weight of polished and rough, uncut diamonds here to distinct simulants, moissanite, CZ, zircons, cultured, synthetic and other fake stones from real diamonds.
Example: a CZ Zircon weights about 1.31 Carats or about 55% more than a diamond for the same size.
a Moissanite of 6.5 mm (One carat size) round brilliant, weights approximately 0.87 carats.
Compare the stone to a real diamond: Use a carat or gram scale.
Transparence:
Put a line on a paper or take a printed paper. Place the stone upside down over the line or over the printed paper.
If the stone shows any sign of the line or of the printed text through, it is fake.
If the diamond is mounted, place it upside down on a piece of printed paper. If you can read through the print or even see smudges, then it is probably not a diamond. You should not be able to see the bottom, looking directly from the top
Diamonds have a high refractive index. You cannot see through.
Steam:
Bring the stone in your mouth, exhale to procreate vapor. If the stone stays more than 3 seconds "foggy" it is probably a simulant.
Hardness:
If the stone shows abraded facet lines, magnified by loupe x 10 it is not a diamond. Take a piece of sandpaper barn the stone. If it is damaged it is a fake! "Scratch tests" on glass, metal, stones. Diamond will cut and scratch everything. Fake will not. Remember that diamond is the hardest material that exist! Fake, imitation of Rough, Uncut diamonds are generally crystals coated with diamond powder application on surface by nano technology. Fake rough and polished will be scattered on cutting wheel. Also easily interceptable in a diamond lab and by professionals
Clarity - Inclusions:
Inclusions in diamonds do help to be sure that it is a real diamond. internal and external flaws are a fingerprint, not two diamonds have exact the same characteristics.
Price:
"Cheap Diamonds" a 50% off the price for a diamond don’t exist! If the comparative price seems to good to be true, it is not good!
You can find them mostly by fraudulent sellers on Internet Auctions, online seller shops and stores.
Certification: Detect real from fake / false diamond certificates - switched diamonds
HRD, Diamond High Council and IGI from Antwerp World Diamond Center, delivers always genuine certificates with sealed diamond in a transparent secured case.
How to avoid fake / false Diamond Certificates:
HRD Antwerp-Diamond Lab and IGI have a new diamond certificate that features enhanced security measures, a refined cut grade and is able to be retrieved and downloaded online. The HRD Antwerp Certificate Link allows all HRD Antwerp diamond certificates, diamond-identification reports and diamond-color certificates issued after Jan. 1, 2005, to be retrieved online, 24 hours a day, seven days a week.
To access the certificate link, visit HRD Certificate Link: www.hrdantwerplink.be
IGI gives the same Online Data Retrieval
Check and track real diamond certificate online: HRD Certificate Link: www.hrdantwerplink.be
IGI Online Data Retrieval:: www.igiworldwide.com/IGI_ONLINE/Client
GIA Report: www.gia.edu/reportcheck
HRD and IGI do seal the certified diamond in a transparent secured case to avoid switched diamonds!.
When the seal is broken the text "broken seal" will be visible on the backside of the secured case!
That do not mean that the diamond is a fake but that you do not have any guaranty about the
quality of the diamond or eventualy a fake in the broken secured case. View image of broken seal:
Laser inscribed diamonds
Laser inscribed diamonds showing the name of the Diamond Laboratorie such as HRD, IGI, GIA and the number of the certificate is most safely!
(The difference between a natural and treated, HPHT and synthetic diamonds is only detectable by Diamond labs.)
Buyback guarantee:
Ask for a real written buyback guarantee!
Trust:
Important notice!
Outsiders and non-professional diamantaires please be wise and resist the temptation of purchasing a rough diamond.
It requires many years of experience to valuate the stone.
And an expensive Sarin equipment to estimate the yield from rough. Too many ignorent buyers have bought nice pieces of glass!
Dirty tips and tricks, read about
Diamond Testers: How reliable are they?
You need several diamond testers (cost!) and you must know how to use them. Conventional testers will differentiate on thermal conductivity and on digital reflectivity but… still nothing is foolproof for a non professional! Buying a diamond mostly you do not carry diamond testers.
Conventional diamond testers explained:
Conventional diamond testers will differentiate between diamonds and most simulants based on thermal conductivity. This is the ability of a
substance to conduct heat. Diamonds conduct heat very well, while most simulants simply do not.
Note: moissonite is also a good conductor of heat. A stone that tests as a diamond on a conventional diamond tester, can also be found to be moissanite.
A conventional diamond tester will have a metal tip that becomes hot and measures the amount of heat loss from the tip when applied to another substance. When the same tip is applied to a diamond, the diamond takes the heat from the tip and then the tester will show as a diamond. Some simulants, like the white sapphire, can also conduct heat but not quite as well as a diamond. A diamond tester needs to be able to distinguish these lesser conductors from real diamonds. Most diamond testers will not register diamonds for such items.
A problem when testing diamonds can occur if the tip of the diamond tester accidentally touches a metal prong. If the item is a good conductor of both heat and electricity, then metal was touched. (Note: Moissanite will also conduct electricity, but not nearly as well as a diamond and the metal indicator should not work if the stone is moissanite.)
A method of distinguishing diamonds from moissanite must be used. There are several different methods available now, so it is necessary to test a stone in several places using a moissanite tester.
A conventional diamond tester must always be used first. This will show without any doubt? that the stone is either a simulant or
diamond/moissanite. Once a stone can be proven to be a regular simulant, there is no reason to further test it on a moissanite tester.
An electrical conductivity tester, such as the MT2 Moissanite Terminator, will indicate moissanite and would ideally be used after a thermal diamond tester has eliminated other simulants.
Detect HPHT and Synthetic diamonds:
HPHT treatment must be indicated on the certificate and laser inscibed on the girdle of the diamond (from reliable labs)
D-Screen, a practical analysis. It identifies natural diamonds from synthetics or / and color improved by means of HPHT -
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How to know if a diamond is real - detect, differentiate fake from real polished + rough / uncut diamonds
Test for free by weight | transparence | hardness | inclusions | price | steam | certification | Detect fake certificates | Tips and Tricks (dirty)
Avoid fake diamond certificates - detect fake and simulants. Selling counterfeit, imitation is fraudulent and illegal!
We recommend performing several easy tests, for free, without any traditional diamond tester, to detect the difference between fake and real polished, rough diamonds. Buying a diamond mostly you do not carry diamond testers. Let us help: Send E-mail or call us Tel: + 32 479 28 12 13
