There is a massive disparity in price amongst
diamonds. Clarity, size, cut, and rarity are all significant factors. But a
diamond’s authenticity is of utmost importance as well. Money can be left on
the table if diamonds are undervalued when they’re sold. Likewise, you don’t
want to overpay for diamonds that aren’t real. So, determining a diamond’s
status is crucial.
One method is to place the stone in water. It’s
said that a real diamond will sink, whereas a fake will float. Granted, this is
a moot point for any mounted diamond. And plenty of fakes will also sink like,
well… a rock.
Considering different stones conduct heat
differently, you can also try your own heat test. Hold a diamond up very close
to your face and breath on it so as to fog up the surface. If the condensation
from your breath clears after one or two seconds, it’s said to be an authentic
diamond. If it stays fogged any longer than that, its thermal conductivity
implies a fake. While it’s a good idea in theory, it would be ill-advised to stake
such a large investment as a diamond on such an unpredictable test.
Another lesser-known option is to use a black
light. Eliminating all other light sources and holding a diamond up to a black
light should reveal a blue aura. A green, gray, or yellow glow implies a
diamond’s inauthenticity. A fun test to be sure, but not all diamonds radiate a
blue glow under a blacklight, so this test is far from foolproof.
While there are many ways to go about testing
diamonds, not all methods are created equal. At The Jewelers Toy Store, powered
by Rosenthal Jewelers Supply, we offer the best diamond assessment options.
A diamond tester pen is a handheld electronic
device. They are small enough to fit in your pocket, making them extremely
convenient. Models such as the Presidium
Diamondmate C Rechargeable Diamond Tester and
Tester work by generating a small amount of heat
through the diamond in question. Different materials conduct heat and
electricity differently. So, a diamond tester can measure this and use the information
to determine if a stone is glass, cubic zirconium, or a genuine diamond.
A diamond tester is one of the most reliable
means of assessing authenticity. The only drawback is that thermal diamond
testers can give a false positive for a diamond if a stone is in fact
moissanite. They do conduct heat in an extremely similar way. Moissanite is not
a challenge for diamond testers that rely on electric conductivity, as the two
stones conduct electricity in different enough ways.
The best diamond testers use both thermal and
electrical conductivity to scan diamonds. Models such as Presidium
Diamond Tester, the Asource
Diamond Moissonite Dual Tester, and
Lapis Rechargeable Multi Tester are
some that use both heat and electricity, and deliver highly accurate results.
Some machines also let you go beyond diamond
detection. The Presidium Gem Tester II (PGT II) can
sense the presence of up to 16 colored common gemstones. This device is best
for sussing out which gemstone you have on hand in situations where the
authenticity of the stone is already known, as its thermal capabilities can’t
always distinguish real gemstones from synthetics. It’s also great for its
large display screen, while still being small and portable. This product also
qualifies for free shipping.
When needing to determine between simulant
gemstones, the Gemlogis
Bleu Rechargeable Colored Stone Gem Stones Testing Machine is
an excellent choice. This model can identify as many as 30 different color
gemstones including diamonds and moissanite. Also available to ship to you for
free, the Gemologis Bleu is easy to use with its touch LCD screen and can be
paired to Belize and Mantis via Bluetooth connection.
Speaking of Belize, the Gemlogis
Belize Diamond, Moissanite, Simulant Tester is
topnotch for differentiating authentic diamonds from simulants. The device is
compact and works with both loose and mounted stones. This item is also
available to ship to your doorstep for free.
Whatever model is right for you, all our
products come with fast shipping. Don’t get scammed by convincing knockoffs.
Invest in proper diamond testing equipment and save time and money for your
operation for many years to come. Rely on The Jewelers Toy Store to provide you
with the best diamond tester and gold tester options on the market.