10 Best Diamond Testers

Updated October 2025

Top Choice

1.

Best High Accuracy Diamond Tester Professional Jeweler for Novice and Expert - Diamond

9.6

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2.

HDE High Accuracy Professional Jeweler Diamond Tester For Novice and Expert,Diamond Selector II

9.5

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3.

Diamond Tester Pen,WECHIC High Accuracy Professional Jeweler Diamond Tester for Novice and Expert

9.3

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4.

HDE Jeweler Tool Kit Diamond Selector V2 Portable Tester + 45X Illuminated LED

8.8

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lowest price

5.

StillCool Diamond Tester II V2 Selector Gemstone Jewelry Gems Tool with Case

8.6

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6.

High Accuracy Diamond Tester Professional Jeweler for Novice and Expert - Diamond Selector

8.2

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7.

Professional Diamond Selector II, Gem Tester Pen Portable Electronic Diamond Tester Tool

7.9

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8.

High Accuracy Diamond Tester, Professional Jeweler Diamond Selector for Novice and Expert

7.7

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9.

HEYMOUS Diamond Tester High Accuracy Portable Diamond Detective Test Kit with Gem Tester

7.5

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10.

Diamond Tester＋60X LED Magnifying Glasses Jeweler Tool Kit Combo，for Novice and Expert

7.2

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