The 5 Best Professional gem testers (2023 reviews)
It is important to have the well suited professional gem tester.
In the following post, we will help you to select the best professional gem testers.
Also, you can see our guides on Best gem testers and Best Jewelry testers for a wider range of candidates.
Our review process:
Our Top Picks:
Best Overall: Buy: HMKIS Professional gem Tester READ REVIEWBest For jeweler: Buy: Stillcool Professional gem Tester READ REVIEWBest For price: Buy: Dupeakya Professional gem Tester READ REVIEWBest For Testing: Buy: Presidium Professional gem Tester READ REVIEWBest little Tester: Buy: Ketar Professional gem Tester READ REVIEWBest Overall: HMKIS Professional gem Tester
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Hmkis professional gem tester is the epitome of what a great tester should be. This diamond tester is a great deal with the jewler scope and rechargable 9v included. It can be distinguished, the hardness of jade and diamond of different materials is different, and the equipment can be distinguished. The tip of the pen is the size of a sewing needle so it can detect on very small stones using a steady hand. If even slightly tilted, it will give no reading or alert as diamond.
You will love the fact it actually comes with its kit, cover cases, a battery, and a lil Flashlight/UVLight Microscope. The 9V battery itself is actually rechargeable as you plug it into a USB cable. It is a good tool to have around the house, easy to check types of stones you may come across.Why We Like This:
- Great and reliable source of authentification
- Easy-peas for someone who is not a jeweler to test their diamonds
- Easy to use, and fun worked well
- Include magnifying glass additionally can now verify authenticity of jewelry
Best For jeweler: Stillcool Professional gem Tester
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The stillcool professional gem tester is suitable and reliable and fits well with your daily usage. Diamonds are fantastic conductors of heat, so the rate of change is very high when you touch the tip to a real diamond, less for a CZ and say nearly zero for a piece of acrylic etc. It is a flame fusion stone. The metal sensitivity beep may go off a couple times if your diamonds are "lab diamonds" because sometimes lab diamonds have tiny little scraps of metal left over from the process.
The stillcool diamond tester pen is easy to operate. This protects the surface of the test object is clean, flat and dry. It can be a bit cumbersome at times. The tester itself works great once you learn the correct way to use it. This is a fun little tool to identify your diamonds or maybe not diamonds.Why We Like This:
- Great tool to have for detecting diamonds
- Great value, easy to use and accurate
- Simply enough to just add batteries
Best For price: Dupeakya Professional gem Tester
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Dupeakya has been making great tester for years, thanks to a combination of clever design and appropriate materials. These are beautiful, flawless, and very sparkly gemstones. It can distinguish ALL authentic gemstones from, say glass or cubic zirconias. The level wheel is a sensitivity selector. It is used for testing sapphire, ruby, crystal, agate and other stones. The diamond detector with voice instructions and audible sounds are emitted when the lights are on so that you can easily distinguish between masonry and stone.
This device works as long as you follow the instructions in the manual. The device needs to be restarted after a few minutes of use to be recalibrated. It comes with a soft case and small stone tray. It has a small instruction booklet.Why We Like This:
- Gives a glass reading on all semi precious stones
- A must for someone who has jewelry
- Man-made diamonds are flawless and beautiful
Best For Testing: Presidium Professional gem Tester
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Best part: presidium professional gem tester costs comparatively low and it is available to ship in 24 hours. The Presidium Gem Tester II (PGT II) features a clear and direct analog display for a quick way to identify diamonds/moissanite and separate up to 15 common colored gemstones from one another based on their thermal conductivity. It features the industry’s thinnest retractable probe tip. It is easy to use, tested in different stones.
This tester uses thermal conductivity. It is perfect for a first line of identification and even jewelry/gemstone experts can put this to use. There is an opening under the device that holds two AA size batteries. The probe with the fine tip allows testing on very small colored stones set in jewelry. It is a must have if your hobby involves gemstones.Why We Like This:
- Works well for diamonds, ruby/sapphire, topaz, spinel and to distinguish glass
- Great gemstone tester and identification tool
- Delivers what they promise
Best little Tester: Ketar Professional gem Tester
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Simple calibration for stones of various sizes the jewelry tester silver and diamond tester are easy to use even for a new beginner, tester electronic pen is also a great tool to have when testing your own jewelry. The gem and diamond tester is designed to indicate genuine diamond or fake, working time is about 2 hours of continuous use.
The tester indicates genuine diamond or fake, the jewelry tester meter is designed and manufactured according to the thermal conductivity of diamond, the fake crystal, and a simulant such as cubic zirconia does not have any reaction. You will be able to know in a few seconds whether an item is fake or not, there are the LED indicator and the audible signal a red light will be displayed and an audible indicator will sound if the stone is a real diamond. It comes with a vinyl protection case.Why We Like This:
- Excellent product to detect validation of stones
- Wide uses of electronic diamond tester
- Easy to operate jade jewelry tester
- Great little tester that comes with little vinyl protection case
