Best Diamond Testers Deals Online in the US (10 deals found)

[Power Upgrade] The HMKIS diamond tester offers two power supply options: Type-C and 9V Power (includes a 1m Type-C cable). Utilizing a Type-C power supply delivers a more stable and precise voltage output, thereby enhancing the accuracy and reliability of experimental and test results. Opting for the Type-C power supply is highly recommended for optimal performance. PLZ NOTE THIS IS Non-Rechargeable !

ACCURATE DETECTION : Our professional diamond tester pen (a reliable gem tester) features a sophisticated sensor for precise gemstone identification (Diamonds/Moissanite: 9+ lights + beeps; Jade: 5-6 lights; Crystal/Glass: 5-7 lights). (Jewelry-Only Detection – Not for metal/gold or gold testing kit use)

After-Sales Service: 30-day unconditional return or exchange. For any issues or battery replacement (same type available in the U.S.), please contact us

[Fast and safe ]:Professional Diamond Selector II will indicate genuine diamond or fake.It is designed for quick, precise, and safe diamond testing.LCD display & LED indicator.Uses large / small switches for testing diamonds,Emits audible sounds to easily differentiate the readings.

Identify genuine diamonds instantly. Accurately distinguish authentic diamonds from simulants like cubic zirconia, glass, crystal, or white sapphire using advanced thermal conductivity. Perfect for screening inherited collections or verifying finds at flea markets and pawn shops, Includes a Standard 9V Battery (same type available in the U.S., easily replaceable) for immediate testing.

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

STONE IDENTIFICATION: This new enhanced testing technology is a breakthrough in the identification, detection, and separation of diamonds from other materials such as CZ, moissanite, and white sapphire. This technology has the capability to identify stones with low conductivity, allowing accurate detection and separation of diamonds from other materials. It evaluates stones using cutting-edge scanning techniques and advanced software analysis, ensuring a highly accurate test result.

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

●💎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.

💎💎💎Precision & Safety Key operation,Simple to Usem - Please put the pen tip vertically and gently on the test stone.Please adjust according to the size of the stone to be measured. Instrument up/down button, according to the number of carats displayed below the instrument adjustment, you do not need to set the exact number of carats.But remember, for diamonds (greater than 1.0 carats), please turn on 1 green light; For diamonds (0.5 carats), turn on 2 green lights. For small gems (such as cuts or cones), turn on 3-4 green lights. (Please pay special attention not to touch the keys on the instrument during testing).