The 5 Best Professional gemstone testers (2023 reviews)

• Date : August 17, 2023
• Categories : Jewelry Diamond Testers

It is important to have the well suited professional gemstone tester. In the following post, we will help you to select the best professional gemstone testers.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: HMKIS Professional gemstone Tester READ REVIEW

Best For jeweler: Buy: Stillcool Professional gemstone Tester READ REVIEW

Best For Testing watch crystals: Buy: Hqdz Professional gemstone Tester READ REVIEW

Best For Testing: Buy: Presidium Professional gemstone Tester READ REVIEW

Best little Tester: Buy: Ketar Professional gemstone Tester READ REVIEW

Best Overall: HMKIS Professional gemstone Tester

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Hmkis professional gemstone 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.

The test result of Moissanite is greater than 9 and there is sound. It is a good tool to have around the house, easy to check types of stones you may come across. 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.

• 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 gemstone Tester

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The stillcool professional gemstone 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. 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. This is a flame fusion stone.

The stillcool diamond tester pen is easy to operate and 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.

• Great tool to have for detecting diamonds
• Great value, easy to use and accurate
• Simply enough to just add batteries

Best For Testing watch crystals: Hqdz Professional gemstone Tester

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If you are currently in the market looking for a reliable tester for your daily usage, you cannot go wrong with the hqdz professional gemstone tester. It is designed for quick, precise, and safe diamond testing. If a crystal is sapphire, it will register on the tester as essentially a “diamond. It is used to determine the hardness of stones. It includes this one is super easy to use and the battery. It is easy to use and light turns on on any metal.

This is only for diamonds, which can be tested electrically or thermally. It is easy to use and works great. It just shows the hardness scale of the item being tested.

• Great tool to have if you own any jewelry
• Electrical and thermal testers work regardless of size, cut, color, clarity
• Great tester to verify real or not real
• Diamonds are tested either thermally or electrically

Best For Testing: Presidium Professional gemstone Tester

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The presidium professional gemstone tester is suitable and reliable and fits well with your daily usage. Most stones in alluvial sands are relatively pure and have been cleaned mechanically by the elements. It takes the uncertainty out of most gemstones. It reads cubic zirconia as glass, which is great, since there are so many cubic zirconia fakes from India and China. It can test stones in or out of a setting, so you can hold in your fingers and get a reading.

The probe with the fine tip allows testing on very small colored stones set in jewelry. It's accurate on beeping when touching metal. It has a small soft carrying case with zippers. It will tell you what the hardness is, based on the MOHS scale, and then on the machine it lists the most common stones like garnets, quartz, up to diamonds. It's a keeper for any serious collector and/or reseller.

• Gives a range of what the stone could be
• Delivers what they promise

Best little Tester: Ketar Professional gemstone 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 gemstone tester pen dimensions are 6.6 Inches long, 1.6 Inches wide, and 0.8 Inches thick. 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.

• Wide uses of electronic diamond tester
• Great little tester that comes with little vinyl protection case
• Excellent product to detect validation of stones
• Easy to operate jade jewelry tester