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HMJOY Diamond Tester, High Accuracy Jewelry Diamond Tester＋200g/0.01g Mini Jewelry Scale＋ 60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter

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$25.99

$ 11 .99 $11.99

In Stock
  • [Steps of Usage]: Remove the cap from the testing pen>>Insert the battery we attached >> Turn on the diamond tester pen and wait until both the lambs OK >>Place the pointer vertically on the surface of the stone >>Observe the indicator lights and listen to the sound>> get the result
  • [FOR DIAMOND]:For testing diamond(include real diamond and Moissanite), it will emits beeping-beeping-beeping in a low frequency, 1 time/second. Meanwhile lights ≥ 9 (Notice: the bigger the stone is, the more lights on)
  • [INITIALIZATION SETUP] After powering on, turn the wheel to keep 4 green lights on to finish the Initialization. Otherwise you will get inaccurate results. All test must be done by two hands, one for hold the diamond and one for the diamond tester. As for the hand which hold diamond tester, you have to TOUCH the electricity conductive panel on the back of the unit.
  • [Pocket Scale]: This pocket scale has 200 gram max weight capacity and reads weights in increments of 0.01g.
  • [Magnification]: 60X led Magnification with batteries ( Small microscope ). For Gems, Coins, Antiques, Stamps, Reading, Inspection etc.
  • [Note]: Please ensure that the battery temperature is higher than 10 ℃, can not test metal, save power


Product Description

Test Result Analysis

HMJOY Diamond Tester, Hight Accuracy Jewelry Diamond Tester

Test Result Analysis

1. Real Diamond (including Moistness): The tester pen will emit a low-frequency beeping sound (1 time/second) and the red lamp box on the level meter will light up (the larger the stone, the more red lamp boxes will light up)

2.Fake Diamond: When testing imitation stones like cubic zircon (CZ), crystal, or glass, there will be no sound and the red lamp will not light up.

3.For Metal: This machine CANNOT be used to test metal. If metal is accidentally tested, the machine will emit a high-frequency beeping sound and the red lamp will not light up.

Pay attention to both the light bar display and sound when interpreting the test results!

Common troubleshooting and solutions

1. Unable to Power On

Make sure the 9 V battery is correctly installed, paying attention to the positive and negative terminals, then turn the knob to power on. If the power indicator light does not come on, it means the power is not connected, and it is recommended to replace the battery. (This device consumes a significant amount of power. A new battery can provide a normal working time of about 1 hour, so please remember to turn off the device promptly when not in use)

2. Beeping Sound Upon Powering On

When the machine emits a beeping sound immediately after being powered on, it indicates that initialization settings are required. Refer to the table on the back of the machine for initialization settings, taking into account the temperature and size of the diamond. Adjust the initial number of illuminated lights by rotating the knob (default setting of 4 lights illuminated at room temperature).

3. What should I do if there is no sound or very weak sound when using the test pen for testing?

First, make sure the battery of the test pen is correctly installed and has sufficient power. Secondly, try cleaning the probe of the test pen, keeping the probe clean can improve the testing effect.

4. Why is there a high-frequency sound when testing metal with the test pen?

Because the working principle of the test pen is based on thermal conductivity to differentiate between diamonds and fake gemstones, the thermal conductivity of metal is close to that of diamonds, so a high-frequency sound will be produced when testing metal.

5.Can the test pen test all types of gemstones?

The test pen is mainly used to differentiate between diamonds and other fake gemstones, it may not be able to effectively test other types of gemstones. It is best to have them tested and confirmed at a professional gemstone identification institution.

WARM NOTICE: THIS DIAMOND TESTER PEN IS DESIGNED FOR DISTINGUISH REAL DIAMOND AND FAKE DIAMOND,SO PLEASE DON'T TO USE THIS TEST ANYTHING ELSE, SUCH AS WATER,COIN,METAL,SKIN AND ETC.

How To Use Diamond Tester

HMJOY Diamond Tester, Hight Accuracy Jewelry Diamond Tester

  1. Put the 9V battery in.
  2. After use, turn off the power.

diamond tester

  1. Turn on the lights numbers corresponding to the indoor temperature and diamond weight.
  2. If don't know. Set 4 lights on the scale.
  3. Start test diamond, no need to adjust the switch switch.

HMJOY Diamond Tester, Hight Accuracy Jewelry Diamond Tester

  1. Novice : Set 4 lights on the scale.
  2. Expert :Set the initial value based on the current temperature, object size, and the table on the back of the device.
  3. The principle of the equipment is to measure temperature and transfer energy, so the ambient temperature and object size have an impact on the measurement results.

diamond tester

  1. Use the diamond discriminator probe to make 90-degree contact with the measured object, and observe the indicator light change.
  2. It needs a little bit of force to stop it on the diamond surface and make full contact
  3. If unsuccessful, please repeat the second step

Precautions

  1. Don't wear gloves
  2. Don't detect metal
  3. Best to measure in no wind conditions
  4. The operating temperature is within the range of 10-35 degrees Celsius, and the humidity is below 80%
  5. When testing diamond, your right index finger must keep touching the metal panel on the back of the tester.
  6. Please turn off the power after the test to save power.

Content

  • 1 x Diamond Tester
  • 1 x 9V battery
  • 1 x Protected leather bag
  • 1 x Texting Platform
  • 1 x Jewelry Scale
  • 1 x 60X Mini LED Magnifying

Mini Jewelry Scale

  • Size: 5 inch x 3 inch x 0.8 inch
  • Measure Range: 0.01g - 200g
  • Weighing Units: g, oz, dwt, gn, ct, oz
  • Display: LCD backlit
  • Battery: 2 * AAA

Josh
2025-02-25 13:29:40
Got here within 1 day, good packaging very neat and diamond tester works as it should tested on diamond and cz and metal. Also tested moissanite as it did test positive for diamond but that’s ok as long as your not getting a fake like cz. Well worth it for the price. ( Will update in future if any defect arise )
Customer Review
2024-12-27 16:49:02
This is a nice set. I picked it out for the diamond tester, but was pleased with the mini magnifying tool, and the mini jewelry scale. For the diamond tester turn it to Level 4 to warm it up, you remove the cap, and apply the metal end to the diamond/gemstone. I was using it incorrectly at an angle and wasn’t sure why it wasn’t working. You have to hold it upright. I was interested in how my sapphire would test and it passed and read at a 7. I only used the “regular person” instruction and not the professional instructions.I like the mini magnifier to identify real currency. I will be using it at a garage sale I’m holding in the fall.
MysterIe
2024-12-19 16:14:35
The scale itself seems extremely accurate and easy to use. The other tools are neat, though I don't have any diamonds to test them on.