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10 bestDiamond Testersof July 2025

112M consumers helped this year.

1

HMKIS Diamond Tester, Jewelry Diamond Tester, Thermal Conductivity Meter, Can't Test Metal,Must be Operated with Both Hands
HMKIS Diamond Tester, Jewelry Diamond Tester, Thermal Conductivity Meter, Can't Test Metal,Must be Operated with Both Hands

HMKIS

10.0

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2

SkyWhale Diamond and Moissan Tester - High Accuracy Gemstone Hardness Test Tool for Professional Jewelers
SkyWhale Diamond and Moissan Tester - High Accuracy Gemstone Hardness Test Tool for Professional Jewelers

SkyWhale

10.0

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3

Diamond Tester Pen Selector
Diamond Tester Pen Selector

KETAR

9.8

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4

Corceptive Professional Diamond Selector, Gold Testing Pen Portable Electronic Gemstone Tester Tool Battery Powered For Agate Ruby Jade
Corceptive Professional Diamond Selector, Gold Testing Pen Portable Electronic Gemstone Tester Tool Battery Powered For Agate Ruby Jade

Corceptive

9.7

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5

Manovruti Diamond Tester Machine - Portable Gem or Stone Selector Tool With 9V (Black)
Manovruti Diamond Tester Machine - Portable Gem or Stone Selector Tool With 9V (Black)

Manovruti

9.5

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6

M MORRIS Diamond Tester Gemstone Verification Tool - Portable Checker, Battery-Operated Detector With Magnifier, Professional Testing Device (9 Volts, Black)
M MORRIS Diamond Tester Gemstone Verification Tool - Portable Checker, Battery-Operated Detector With Magnifier, Professional Testing Device (9 Volts, Black)

M MORRIS (DEVICE)

9.3

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7

Diamond Tester Pen, High Accuracy Jewelry Diamond Tester＋200g/0.01g Mini Jewelry Scale＋60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter
Diamond Tester Pen, High Accuracy Jewelry Diamond Tester＋200g/0.01g Mini Jewelry Scale＋60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter

Szxhf

9.1

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8

Professional Diamond Selector II, Gold Testing Pen Portable Electronic Gemstone Tester Tool for Agate Ruby Jade
Professional Diamond Selector II, Gold Testing Pen Portable Electronic Gemstone Tester Tool for Agate Ruby Jade

Dupeakya

8.9

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9

Diamond Tester Pen, High Accuracy Jewelry Diamond Tester＋ 60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter
Diamond Tester Pen, High Accuracy Jewelry Diamond Tester＋ 60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter

Asahijade

8.7

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10

Diamond Tester Pen, High Accuracy Jewelry Diamond Tester,Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter,Accuracy Jewelry-Diamond Tester Pen
Diamond Tester Pen, High Accuracy Jewelry Diamond Tester,Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter,Accuracy Jewelry-Diamond Tester Pen

Szxhf

8.4

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