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Diamond Testers of 2025
Save up to 15% off
Best Choice1
ValkynosValkynos Rechargeable Diamond Tester Pen with LCD Display & UV Light – Professional High Accuracy Gem & Jewelry Testing Tool for Diamonds, Easy-to-Use Electronic Selector for Novice and Expert
9.8Exceptional
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Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you
Careful review Our team ensures quality, value, and fit based on real user feedback
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Value for Money2
PresidiumPresidium Multi Tester III (PMuT III) All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants
15% Off9.7Exceptional
Our Rating
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3
PresidiumPRESIDIUM DIAMONDMATE-C ELECTRONIC DIAMOND TESTER
9.5Excellent
Our Rating
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4
HMKISHMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable)
Key specs-
Dimensions:10.16 x 2.17 x 1.38 inches
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Testing Method:Beeping sound alerts
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Sound Alert:Beeping-beeping-beeping
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Weight:4.2 ounces
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Battery:1 9V battery included
9.3Excellent
Our Rating
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5
HqdzHigh Accuracy Professional Diamond Tester Pen Jeweler Tool for Novice and Expert - Diamond Selector II 9V Battery Included(Black)
9.2Excellent
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6
SizivikiDiamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Tester Pen Professional (Metal Detection Limitation)
Key specs-
Dimensions:5.31L x 0.87W x 1.57H
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Testing Method:Sound alert above 9
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Sound Alert:Yes
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Weight:3.52 ounces
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Battery:9V, not included
9.1Excellent
Our Rating
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7
GTEPurity Testing Kit for Diamonds Gemstones Moissanites Gold Silver and Platinum Jewelry Electronic Digital Diamond Tester Machine JSP GTE
Key specs-
Accuracy:Fast and accurate
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Karat Range:Gold, Silver, Platinum
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Test Types:Jewelry testing
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Power Source:N/A
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Portability:N/A
8.9Very Good
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8
TEKCOPLUSDiamond Tester Jewelry Gem Stone Tester Moissanite Tester Professional 2pt Jewel Stone Combo Tester Kit for Diamond, Moissanite, Metal and Gemstone Selection - High Accuracy Jeweler Test Meter Device
8.8Very Good
Our Rating
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9
Hqdz-tdDiamond Tester Professional Diamond Tester Pen with UV Light, Jewelry Gem Tester Pen，Portable Electronic Diamond Checker Tool，Professional Diamond Selector for Novice and Expert（Battery Included）
Key specs-
Dimensions:5 x 1.18 x 0.8 inches
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Testing Method:High-tech chip
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Sound Alert:Buzzer emits rings
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Weight:3 ounces
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Battery:1 9V battery
8.5Good
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10
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
8.3Good
Our Rating
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