Best Gun Gold Testers in 2026

Voltbeat technology and continuous self-test - so you always know it is working

Upon detection, tip glows and beeper sounds

CAT IV 1000 V for added protection

[Easy to Use]: Real Diamond will Emits sounds and lights >=9.

[Intuitive Design]: Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and lights <9.

[fast and safe ]: This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds.

Professional Diamond Selector II will indicate genuine diamond or fake

Uses large / small switches for testing diamonds

Emits audible sounds to easily differentiate the readings

【Multi-function 】The circuit tester offers full range of electric measurements:AC&DC Voltage/Resistance/Continuity/Frequency/Capacitance//Live Wire/Diode/Phase Sequence.

【Non Contact Voltage Tester】The electric detector enables you to detect voltage without any contact which largely avoids electrical shock.

【Beeper&Indicator Bar】Both are activated when voltage is detected.The frequency of warning tone and the color of indicator light varies depending on the voltage level

[Fast and safe ]:Professional Diamond Selector II will indicate genuine diamond or fake.It is designed for quick, precise, and safe diamond testing.

[Intuitive Design]:LCD display & LED indicator.Uses large / small switches for testing diamonds,Emits audible sounds to easily differentiate the readings.

[Simple to Use]:Hqdz Diamond Tester Pen is simple to operate to get results, professional(s) are not required. Simply turn on our Diamond Tester Pen detector; place the tip of the Diamond Tester on the gem stone (lightly pressed is sufficient) and If the stone is fake, crystal or cubic zirconia, the tester will not beep.

✅【Intuitive Design】 Our diamond tester features an LCD display and LED indicator make it easy to read your precise testing results.

✅【Effortless Testing】 No need for a professional - the StillCool 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.

✅【If it's Real Diamond】The professional Diamond Tester will lighted up over 9 and emits audible sounds. No reaction means the stone is a fake crystal or simulant like cubic zirconium (CZ).

FUN, FAST, AND ACCURATE! DETERMINES THE KARAT OF GOLD, SILVER, & PLATINUM JEWELRY IN SECONDS!

ALL-IN-ONE GOLD, SILVER, PLATINUM TESTING & APPRAISAL KIT

2 AUTHENTIC *LARGE* GTE 2''x 4'' JEWELRY TOUCHSTONES FOR SAFE TESTING THAT WON'T DAMAGE YOUR JEWELRY

This is a portable electronic device for distinguishing real diamonds from other simulated stones. It is designed for quick, precise, and safe diamond tests.

An excellent tool kit for the diamond tester, suitable for handling any exposed or inlaid diamonds and gems, as well as other jewelry and precious metal items.

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.

Built-in flashlight

Non-contact sensing circuit detects 50-1000V AC

Audible and 360 visual indication

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.

Simple to Use Diamond Tester Pen is simple to operate to get results, professional(s) are not required. Simply turn on our Diamond Tester Pen detector; place the tip of the Diamond Tester on the gem stone (lightly pressed is sufficient) and If the stone is fake, crystal or cubic zirconia, the tester will not beep. reads weights of adiamond use 200g/0.01g Mini Jewelry Scale, To determine the clarity of a diamond use 60X LED lighted Loupe, magnifying glasses.

This pocket scale has 200 gram max weight capacity and reads weights in increments of 0.01g. High precision sensors make sure the accuracy. 6 weigh modes available - g/ oz/ gn/ ct/ dwt/ ozt.Tare & Auto-off: You can use the tare function to zero the weight of container within 200g. Energy saving by 3 minutes auto-off function.

World’s most user-friendly, best performing handheld electronic gold tester with unmatched accuracy

Tests all colors of gold from 6K to 24K, and also tests platinum

Immediate test results – no waiting between tests

Professional Diamond Selector II will show real diamonds or fakes，Use the big/small switch to test diamonds，Makes an audible sound to easily distinguish readings.

Easy to use：Real diamonds make sounds and lights >= 9.Fake crystal, such as cubic zirconia (CZ), crystal, glass will not emit sound and light <9.

Support battery: support mercury-free alkaline environment-friendly high-performance battery，DC 9V battery x 1 (included)

INCLUDED ASSISTED THERMAL CALIBRATION | Now easily self calibrate your device to your testing environment

INDUSTRIES MOST TRUSTED | Gemstone tester redesigned to be more compact, sturdy and portable

THINNEST RETRACTABLE PROBE TIP I PGT II features the industry’s thinnest retractable probe tip

Size of Diamond Tester Pen: The gemstone tester pen dimensions are 6.6 Inches long, 1.6 Inches wide, and 0.8 Inches thick. The portable diamond tester gadget is lightweight, matched with a practical carrying case.

Detection Way: 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, a simulant such as cubic zirconia does not have any reaction.

Result Indicator of Diamond Reader: With diamond gem tester 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.

【DIAMOND TESTER】 Jewelry Identification Tool is a diamond selector with accurate and reliable reading, but also a multi-gem tester. Made of quality material, which is eco-friendly and durable to use. which is eco-friendly and durable to use.

【EASY TO USE】 A new portable diamond observation tool, you can use infrared irradiation in diamond to evaluate the diamond.Jewelry Identification Tool In accordance suitable for outdoor environment and adverse weather conditions, suitable for jewelry display or identification assistance.

【EASY TO TAKE】 The compact size is easy to use and portable to store. Jewelry Identification Tool Suitable for jewelry display or identification assistance. The handle of ergonomic design is convenient to grip.

【DIAMOND TESTER】 This is a diamond selector with an accurate and reliable reading.

【QUALITY GUARANTEE】 the best quality. Our brand is dedicated to providing high quality products. We have confidence in our products and offer after sales support. If you have problems with product quality, contact us.

【SCOPE OF APPLICATION】 Moissanite Tester is an instrument that combines with the Diamond Selector II. It is only used for the distinction of colorless Moissanite.

Tests all colors of gold from 6K to 24K and tests platinum

Easy to read alphanumeric LCD display shows both karat value and gold percentage

Results in seconds

A pocket-sized, battery-operated tester that will precisely determine gold karat values equal to or greater than 10K, 14K, and 18K

Also includes testing solution Activator/Electrolyte, a latex-free eraser, cotton swabs, and also helpful instructions

Testing solutions do not come filled to the top of bottle

18K Yellow Gold

Use for AGT1, AGT2, AGT3 & AGT-Blue & Kee Gold Tester

6.4mm (1/4") wide

Country Of Origin: China

Model Number: 0770

Item Package Dimension: 25.0" L x 14.0" W x 17.0" H

Fully portable

Battery operatec

Automatic shut-off function

Tests all colors of gold from 6K to 24K and tests platinum

Powered by included 9V alkaline battery or 100V-240V AC adaptor

Alphanumeric LCD display shows both karat value and gold percentage

High Precision Diamond Tester: The professional diamond dial will indicate true or fake diamonds, LCD monitors and LED indicators. Compared to the second generation, its sensitivity and precision have been improved considerably.

Portable Design: Diamond Selector II is equipped with a PU bag and a small test tray to hold loose stones. Designed for rapid, accurate and safe diamond testing. Through non-destructive testing, the operation is simple and precise. The tester is lightweight, compact (size of credit card) and easy to transport.

Small Test Platform: This tester is equipped with a PU housing and a small test platform for repairing loose stones. Simple calibration of precious stones of all sizes is easy for beginners.In order to let you carry it better, we have a special leather case storage bag! Suitable for carrying when going out for appraisal

Determines gold karat values to be greater than or equal to 10K, 14K, or 18K

Safe and non-destructive testing methods

Can separate solid gold from gold plate

Non-destructive Testing: The moissanite tester is a matching instrument with the diamond selector II. It is only used for the distinction of colorless Moissanite, Non-destructive testing, simple and accurate operation, low power consumption, low battery alarm (red light indication) for Moissanite Tester

Portable: The size of the diamond selector II is about 16 * 4 * 2.1 cm/ 6.30 * 1.57 * 0.83 inches, and the size of the Moissanite tester is about 2.2 * 4 * 16 cm/0.87 * 1.57 * 6.30 inches. It is light and compact and easy to carry.

How to Use: Our diamond selector II can help you distinguish whether the diamond is a real diamond or a fake diamond. If the diamond is a real diamond, the green indicator will be displayed on the Diamond Selector II. When the user accidentally touches metal instead of stone, it will emit a constant buzzing sound

Ideal for determining gold karat values up to 24 karat

2 year warranty

9-volt battery operated

✅【High Accuracy】 The Diamond&Moissanite Tester is designed to help you quickly determine diamond and moissanite from other fake stones

✅【User-Friendly】: Diamond Detector is easy to operate, hold the meter in 90 Degree position to insert to the surface of diamond, then Green light(diamond) or Blue light(moissanite) will appear on the indicator

✅【High-precision chip】Diamond Tester is able to detect metal, the inditor will appear orange signal if touch metal material. If without this function, other testers selling on amazon can indicate a real diamond when you unknowingly touch the setting even if the diamond is fake.

Ideal for use with test stones and testing solutions to determine contents of precious metals

Set of 4 test needles includes: 10k, 14k, and 18k and silver

Can be used to determine contents of gold and other precious metals

Distinguish Moissanite From Real Diamond: Our Professional Moissan LED Indicator Tester Moissanites Detector Pen Jewelry Testing Tool can accurately distinguish between moissanites and real diamonds. Perfect for verifying the authenticity of your diamond jewelry and ensuring that you're getting what you paid for.

Non-Destructive and Highly Efficient: This moissanite tester is non-destructive and won't harm your items in any way. The instrument probe is very sensitive, bringing high working efficiency, and will automatically alarm if the battery is too low. This makes it easy to use and safe for your precious jewelry.

Portable Size for Convenient Carrying: Our moissanite tester has a compact and portable size, so you can take it with you wherever you go. Perfect for jewelry dealers, collectors, and enthusiasts who need to verify the authenticity of their diamonds on the go.

ALL-IN-ONE 14K GOLD AND SILVER TESTING & APPRAISAL KIT

FUN, FAST, AND ACCURATE! DETERMINES THE KARAT OF GOLD AND SILVER JEWELRY IN SECONDS!

AUTHENTIC *LARGE* GTE 2''x 4'' JEWELRY TOUCHSTONE FOR SAFE TESTING THAT WON'T DAMAGE YOUR JEWELRY