The REVEAL 2S Diamond Detector delivers accuracy in identifying natural diamonds, HPHT and CVD lab-grown diamonds, and simulants like Cubic Zirconia and Moissanite.
The search depth of the DIAMOND HUNTER SMART device reaches 50 meters in the ground and a forward range of 3000 meters. The DIAMOND HUNTER SMART has been developed to make it easier to operate in all kinds of terrain and in the most difficult weather conditions.
AJAX Detectors offers state-of-the-art diamond detector machines designed to accurately locate natural diamonds and gemstones underground. Each diamond detector combines powerful sensing technology with advanced signal analysis to distinguish real diamonds from other minerals with high precision.
Mobile apps may mimic testing, but they can't match the accuracy of professional instruments. Your phone won't replace a professional appraisal, but it can assist. Use the flashlight to observe how the stone handles light. A real diamond will produce sharp flashes and concentrated brilliance.
When we shine a flashlight on a diamond, we're observing how the stone interacts with light. A real diamond refracts light in such a way that it sparkles with a gray and white brilliance, and can also cast rainbow colors onto a surface. The way a diamond reflects light is unique due to its high refractive index.
Real diamonds don't fog up as long. If you take the stone and breathe on it—whether it's real or fake—it will fog up, just like a mirror. The difference, however, is in how long the fog lasts on the stone's surface. With real diamonds, the fog will disappear quickly because diamonds conduct heat.
The Aquamarine name comes from the Latin word for seawater and is said to calm waves and keep sailors safe at sea. It is sometimes referred to as a poor man's diamond because of the pale color.
To determine a diamond's authenticity using a mirror, observe the mirror reflection test. Genuine diamonds display unique reflective quality, lack surface scratches, show no fogging effect, and their mirror symmetry highlights their real, unmatched brilliance.
Pure diamond is not magnetic.
Diamond Water Test
This may be the easiest test, but it requires that we have a loose gemstone. Since diamonds have a high density, they will naturally sink when placed into a cup of water. If the stone happens to float, that means it is indeed fake.
Presidium products are used in gemological institutes, laboratories, jewelry manufacturers, diamond appraisal businesses and retail jewelers globally.
Can fake diamonds pass diamond tester? Yes, some diamond simulants can pass a diamond tester. For example, moissanite, a man made gem, may pass as a diamond on a standard tester pen.
Australia's largest and most economic diamond deposit has been the Argyle Mine, in the East Kimberley region of Western Australia. It started production in the early 1980s and was, for some years, the world's largest diamond mine by volume. It produces a large quantity of stones each year for the international market.
TANZANITE: ONE THOUSAND TIMES RARER THAN A DIAMOND.
When testing, the tip is placed on the diamond, allowing the heat to pass through the diamond. The device detects heat rate transfer through the stone, telling whether it is a natural diamond. Modern diamond testers use electrical conductivity to let you know if you are dealing with a genuine stone.
Flashlight Test
To tell if a diamond is real with a flashlight, observe how the stone refracts light. Shine a flashlight directly at the diamond. A real diamond will reflect white light brilliantly, while a fake stone may not reflect as intensely or at all.
Can you test a diamond with your phone? You can use your phone's flashlight, or any bright light, as a quick way to observe how a diamond interacts with light.
A 20-carat diamond is quite large, weighing 4 grams (0.2 grams per carat) and appearing roughly the size of a U.S. dime to a bit larger, with dimensions around 20-22 mm long for an oval or about 20-21 mm in diameter for a round cut, though size varies significantly with shape and cut quality.
No, a jeweler generally cannot tell if a diamond is lab-grown just by looking at it with the naked eye; they need specialized, lab-grade equipment like GIA iD100 or X-ray luminescence (XRL) testers to detect subtle differences in growth patterns, impurities, or fluorescence, as lab-grown diamonds share the same chemical and optical properties as natural diamonds. While some jewelers have machines to test, professional grading labs (like GIA) use advanced methods to identify them, often relying on laser inscriptions and grading reports for confirmation.
While there are a few naturally occurring white stones, Krikawa highly recommends white sapphire as the top natural alternative to diamonds.
The "3-month ring rule" is an outdated marketing guideline suggesting spending the equivalent of three months' salary on an engagement ring, a concept created by De Beers to boost diamond sales, evolving from earlier one and two-month suggestions. Today, it's widely seen as a myth, with most couples prioritizing personal financial comfort, open communication, and meaningful choices over this arbitrary rule.
True diamonds have high density and should quickly sink to the bottom of the glass. Fake diamonds are not as thick, and therefore, more likely to float in water. This test is not always foolproof. Some materials that make up fake diamonds, such as cubic zirconia and moissanite, can sink if they are heavy enough.
Diamonds will burn at about 1562°F (850°C). House fires and jewelers' torches can reach that temperature. A house fire caused the white, cloudy appearance of this diamond (left). The stone was recut to remove the burned area, reducing the diamond's size, but leaving no sign that it was ever damaged (right).