10 Best Tester Diamond Hard In The Us - Black Friday 2024
Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored Gemstones
8.2 Simple to use8.0 Precision8.0 worth the moneyWhy we love it
The PGT II is a reliable and versatile gemstone tester that is easy to use.
The PGT II features the industry s thinnest retractable probe tip, making it easier to use.
The PGT II is designed to be more compact, sturdy and portable.
9.8Exceptional
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Value for Money2
Presidium19% OffPresidium Multi Tester III (PMuT III) All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants
8.7 movability8.0 Simple to use8.0 worth the moneyWhy we love it
Ergonomic design with anti-slip grip for easy handling.
Tests both diamonds and moissanites in one device.
Clear multi-viewing LED display for easy readability.
9.7Exceptional
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3
HqdzHigh Accuracy Professional Diamond Tester Pen Jeweler Tool for Novice and Expert - Diamond Selector II 9V Battery Included(Black)
Why we love it
The Diamond Selector II can quickly and accurately tell whether a diamond is real or fake.
It is easy to use and comes with a testing platform and user manual.
The Diamond Selector II is battery powered for convenience.
9.6Exceptional
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4
HMKISHMKIS Diamond Tester Pen, High Accuracy Professional Jewelry Diamond Tester with 60X Jewelry Loop Magnifier, Diamond Selector for Novice and Expert
8.9 movability8.0 Simple to use8.0 worth the moneyWhy we love it
Accurate results for diamonds and imitation stones.
Includes a 60X magnification tool for detailed inspection.
Affordable and user-friendly for casual users.
9.5Excellent
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5
xinlerXinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool
Main highlights- ★ NOTICE: * No matter what gemstone you are testing, the probe needle and the tested object must be at a 90° angle. * When testing diamond, your right index finger must keep touching the metal panel on the back of the tester, while you do not touch the panel if you test other gemstones. * Do Not test any metal. * Do Not wear glove.
- This gemstone testing equipment is not only a diamond tester, but also a multi gemstone tester. It can detect if a gemstone is real or fake, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other precious stone of various sizes.
- Product size: 16 * 4 * 2.2 cm. weight: 100g. Power needed: 1x 9V battery (not included). If you have any problem about the testing, please contact us, we would love to help.
- Before Test: 1. Put the battery in the tester. 2. Take off the probe cap. 3. Turn on the switch. 4. Make sure only one light light up on the scale. 5. Make sure the " ready lamp" light on. 6. (If test diamond, you then need to turn on the lights number corresponding to the indoor temperature and diamond weight.). 7. (If test other gems, you'd better calibrate the probe, method: by placing the probe vertically on a glass, then adjusting the light to 5, then test the gems.)
- * If the number of lights equals or exceeds 9, and it beeps, it means the diamond is true. * If the lights is about 9 and it beeps, it means the sapphire is true. * If the number is 6.5-7, it means the agate is true. * If the number is 7-8 , it means the crystal is true. * If the number is 6-7, it means the jade is true.
9.3Excellent
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6
Hqdz-tdDiamond Tester Pen, Jewelry Diamond Tester with 60X Mini LED Magnifying&40X Full Metal Illuminated Jewelry Loop Magnifier, Thermal Conductivity Meter, Diamond Selector for Novice and Expert
Main highlights- ●It is designed for quick, precise, and safe diamond testing. ▲【Professional Diamond Selector】 After powering on, turn the wheel to keep 4 green lights on to finish the Initialization. Otherwise you will get inaccurate results.For Diamond Simulants：No Sound and No Red lamps light on.[Note]: This diamond tester cannot distinguish Mosanite and diamonds. Because the product works by measuring the thermal conductivity of an object. The thermal conductivity of Mosanite is almost the same as diamond.
- ▲【Intuitive Design】Our diamond tester features an LCD display and LED indicator make it easy to read your precise testing results. No need for a professional - the Hqdz-td Diamond Tester Pen is easy to operate. Just turn it on, lightly press the tip to the gemstone, and wait for the beep to know if it's real or fake.
- ▲【For Metal Alert】When Testing metal, it will emits beeping-beeping-beeping in a high frequency,5times/second. The thermal conductivity of the metal is very high and can give the same indication as a diamond with most thermal probes.This Diamond Selector II has a metal Alert Buzzer to warn you when touches metal. If you hear the Metal Alert buzzing sound,re-touch the probe tip so as to touch only the tested stone.Other Alert：When test other items, it will also emits beeping-beeping-beeping in a high frequency,5times/second,such as your body,water,and so on.
- ▲【For Imitation】When Testing Imitation stone,such as cubic zirconium ( CZ ), crystal, glass, there will be no sound, and the red lamp won’t light.This diamond tester II can just distinguish diamond and fake diamond,but CAN NOT distinguish Moissanite & Real Diamonds。For testing diamond, it will emits beeping-beeping-beeping in a low frequency, 1 time/second. Meanwhile 1-4 pieces of the RED LAMP box of the level meter light on(the bigger the size of the stone is, the more pieces of the red lamp box of the level meter light up)
- ▲【Bright LED】With this dual LED light source, you can clearly see objects in the dark or in low light. The magnifying glass provides a detector for detecting counterfeit banknotes, which is used for banknotes, passports, credit cards and traveler's checks, etc.It is very convenient to carry and you can use it anywhere.
9.2Excellent
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7
HMKISHMKIS Diamond Tester Pen and 9V Battery Kit,High Accuracy Jewelry Diamond Tester,Diamond Selector for Novice and Expert, Thermal Conductivity Meter (Diamond Tester)
8.0 Simple to use8.0 Precision8.0 worth the moneyWhy we love it
Intuitive Design: Easy to Use
Real Diamonds: Sounds/Lights
Safe/Precise Testing: No Harm
9.1Excellent
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8
HMKISDiamond Tester, Jewelry Diamond Tester Pen ＋ 40X Mini LED Magnifying, Diamond Selector for Novice, Thermal Conductivity Meter
Main highlights- 【TWO-HANDS TEST】 It is essential to perform all tests using two hands - one to hold the diamond and the other to operate the diamond tester. The hand that holds the diamond tester must make contact with the electricity conductive panel on the back of the unit. Testing the diamond with just one hand will result in inaccurate readings.
- 【METAL ALERT】When Testing metal, it will emits beeping-beeping-beeping in a high frequency,5times/second. The thermal conductivity of the metal is very high and can give the same indication as a diamond with most thermal probes.) This Diamond Selector II has a metal Alert Buzzer to warn you when touches metal. If you hear the Metal Alert buzzing sound,re-touch the probe tip so as to touch only the tested stone.
- 【INITIALIZATION SETUP】 We have to finish the initialization setup by the following 2 steps: 1st we have to check the detailed room temperature and diamond size,find the Initial value of our test.you can find the detailed table on the back of the diamond tester pen. 2nd we have to turn the wheel to set the Initial value.eg if the size of diamond is small than 0.05ct, and the temperature is more than 30 degrees Celsius,then set the Initial value as 7, it means you have to turn the weel and keep 7 lights on. Otherwise you won't get a acuracy result.
- 【FOR IMITATION 】When Testing Imitation stone,such as cubic zirconium ( CZ ), crystal, glass, there will be no sound, and the red lamp won't light.
- 【FOR DIAMOND】For testing diamond, it will emits beeping-beeping-beeping in a low frequency, 1 time/second. Meanwhile 1-4 pieces of the RED LAMP box of the level meter light on(the bigger the size of the stone is, the more pieces of the red lamp box of the level meter light up)
- 【DON'T WAER GLOVES】When testing, please don't weart gloves.
- 【CUSTOMER SERVICE】For any questions, feel free to contact us.
- 【CAN'T DISTINGUISH MOISSANITE】Please note that this diamond testing pen is designed as an entry-level tool for beginners. It is capable of distinguishing between diamonds and imitation gemstones. However, it is not able to differentiate between natural diamonds and laboratory-grown diamonds (also known as Moissanite).
8.8Very Good
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9
GTEGold Silver Platinum Diamond Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Electronic Scale Test 30X Eye Loupe Magnifier Precious Metals 999 925 Scrap
9.1 Precision9.1 Simple to use8.9 clearly writtenWhy we love it
Accurate Fast: Determine karat of jewelry in seconds.
Safe: Authentic GTE 2x2 touchstone wont damage jewelry.
Complete: Kit includes digital scale, diamond tester, triplet magnifier, needle files, and test bars.
8.6Very Good
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10
PresidiumPRESIDIUM DIAMONDMATE-C ELECTRONIC DIAMOND TESTER
8.9 Simple to use8.0 worth the money8.0 PrecisionWhy we love it
This product helps you verify the authenticity of diamonds instantly.
The thin probe tip .6mm allows you to test diamonds as small as .02ct.
The retractable thermoelectric probe tip enhances accuracy and ensures constant pressure between probe and gemstone.
8.4Good
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