10 Best diamond gold testers of 2025

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1

GTE
Gold Silver Platinum Diamond Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Electronic Scale Test 30X Eye Loupe Magnifier Precious Metals 999 925 Scrap
Main highlights

Comprehensive Jewelry Testing Kit
Includes tools to test gold, silver, platinum, and diamonds accurately and quickly.

Perfect for Novices and Professionals
Ideal for beginners and experienced users engaging in jewelry trading or appraisal.

Highly Rated for Ease of Use
Praised for being user-friendly and boosting confidence in jewelry assessments.
9.7

Exceptional

Our Rating

9.1
Simple to use

9.1
Precision

8.9
clearly written
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Based on millions of stores and reviews

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Value for Money

2

GTE
Purity Testing Kit for Diamonds Gemstones Moissanites Gold Silver and Platinum Jewelry Electronic Digital Diamond Tester Machine JSP GTE
Main highlights

Comprehensive Testing Kit
Includes tools for testing gold, silver, platinum, and diamonds.

Ideal for Jewelry Enthusiasts
Perfect for those investing in or evaluating precious metals and stones.

Highly Rated Diamond Tester
Customers praise the diamond tester for its accuracy and reliability.
Key specs
- Accuracy:Fast and accurate
- Karat Range:Gold, Silver, Platinum
- Test Types:Jewelry testing
- Portability:N/A
- Power Source:N/A
9.5

Excellent

Our Rating
3

HMKIS
HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable)
Main highlights

High Accuracy Testing
The diamond tester provides reliable results, distinguishing diamonds from imitations with thermal conductivity.

Ideal for Novice and Expert
Suitable for both beginners and professionals in jewelry testing and inspection.

60X Magnification Praised
Customers appreciate the included 60X LED magnifier for detailed examination.
Key specs
- Battery:1 9V battery included
- Dimensions:10.16 x 2.17 x 1.38 inches
- Testing Method:Beeping sound alerts
- Sound Alert:Beeping-beeping-beeping
- Weight:4.2 ounces
9.3

Excellent

Our Rating

8.9
movability

8.0
Simple to use

8.0
worth the money
4

Hqdz
Diamond Tester,High Accuracy Jewelry Diamond Tester Professional Diamond Tester Pen Jeweler Tool for Novice and Expert - Diamond Selector II 9V Battery Included(Black Diamond Testers)
Main highlights

Quick and Precise Testing
Professional Diamond Selector II offers fast, accurate, and safe diamond identification.

Ideal for Home Use
Perfect for checking jewelry at home or small-scale evaluations.

Highly Praised for Accuracy
Customers appreciate its ability to distinguish real diamonds from fakes effectively.
9.2

Excellent

Our Rating
5

GTE
Gold Silver Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Platinum Palladium Test Precious Metals 999 925 Scrap
Main highlights

Versatile Testing Kit
All-in-one kit determines karat of gold, silver, platinum.

Ideal for Jewelry Enthusiasts
Perfect for testing and appraising jewelry investments and scrap.

Highly Rated for Affordability
Praised for testing multiple metals at an affordable price.
Key specs
- Accuracy:Accurate
- Karat Range:Gold, Silver, Platinum
- Test Types:Gold, Silver, Platinum
- Portability:N/A
- Power Source:N/A
9.1

Excellent

Our Rating
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6

Siziviki
Diamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Tester Pen Professional (Metal Detection Limitation)
Main highlights

Quick and Easy Testing
Detects authenticity of diamonds, jade, agate, and crystal quickly.

Ideal for Jewelry Verification
Perfect for verifying gemstones in watches and jewelry.

Ease of Use Praised
Customers appreciate its simplicity and effectiveness in operation.
Key specs
- Battery:9V, not included
- Dimensions:5.31L x 0.87W x 1.57H
- Testing Method:Sound alert above 9
- Sound Alert:Yes
- Weight:3.52 ounces
9.0

Excellent

Our Rating

8.0
worth the money

8.0
Precision

8.0
Simple to use
7

KETAR
Diamond Tester Professional Pen Tool - KETAR Diamond Rings Jewelry Testing Kit Black Diamond Jewelry Tools Fake Diamonds Gem Tester - Real Diamond Tester Battery Tester Gemstone Diamond Checker Tool
Main highlights

Portable and Durable Design
The gemstone tester pen is lightweight, compact (6.6 x 1.6 x 0.8 inches), and comes with a carrying case for easy portability and long-term use.

Ideal for Jewelry Verification
Perfect for testing diamonds, gold, silver, and other gemstones. Suitable for industrial, educational, and personal use, including appraisals and home testing.

Accuracy and Ease of Use
Customers appreciate the tester's accuracy and user-friendliness, making it easy for beginners to identify real diamonds with audible and visual indicators.
8.9

Very Good

Our Rating

8.9
movability

8.0
Simple to use

8.0
worth the money
8

GTE
Professional Gold, Silver, Platinum Jewelry Testing Kit with Stone Instructions and Box with 30X Eye Loupe Magnifier Precious Metals 10K 14K 18K 24K 999 925 Scrap
Main highlights

Fun Fast Accurate Testing
Determines the karat of gold, silver, and platinum jewelry in seconds with detailed instructions and a handcrafted wood storage box.

Ideal For Investors And Hobbyists
Perfect for anyone who invests in or collects gold, silver, or platinum jewelry. Keeps testing solutions organized and readily available.

Praised For Clear Instructions
Customers appreciate the clear, step-by-step instructions that make the testing process straightforward and easy to follow.
Key specs
- Accuracy:Fun, fast, accurate
- Karat Range:Gold, Silver, Platinum
- Test Types:Jewelry test kit
- Portability:Handcrafted wood box
- Power Source:N/A
8.7

Very Good

Our Rating

8.9
Precision

8.9
Simple to use

8.9
clearly written
9

GTE
Gold Silver Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Test Precious Metals 999 925 Scrap
Main highlights

Fun Fast and Accurate Testing
Determines the karat of gold and silver jewelry in seconds.

Ideal for Investors
A must-have for anyone investing in gold and silver.

Quick Shipping Praised
Customers appreciate the quick shipping and reliable seller service.
Key specs
- Accuracy:Fast and accurate
- Karat Range:Gold and Silver
- Test Types:Gold, Silver
- Portability:N/A
- Power Source:N/A
8.6

Very Good

Our Rating

8.9
Simple to use

8.7
worth the money

8.7
clearly written
10

Hqdz
Diamond Tester Pen＋60X Mini LED Magnifying,High Accuracy Jewelry Diamond Tester Tool,Environmental Protection 9V Battery,Professional Diamond Selector for Novice&Expert,Thermal Conductivity Meter
Main highlights

Intuitive Design and Fast Results
The Hqdz Diamond Tester Pen features LED lights, audio indications, and delivers fast, accurate results. It's simple to use without needing professional expertise.

Ideal for Jewelry Appraisal and Thrift Shopping
Perfect for garage sales, flea markets, and personal jewelry testing. Portable with carrying cases, it fits easily into purses or backpacks.

Ease of Use and Accuracy
Customers praise the tester's ease of use and accuracy, highlighting its ability to identify real diamonds quickly, even for beginners.
Key specs
- Battery:Battery Powered
- Dimensions:6.3 x 1.18 x 0.79 inches
- Testing Method:Thermal Conductivity Meter
- Sound Alert:Beep sound
- Weight:6.7 ounces
8.4

Good

Our Rating

9.5
Precision

9.3
Simple to use

9.1
movability

10 Best diamond gold testers of 2025

1

Gold Silver Platinum Diamond Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Electronic Scale Test 30X Eye Loupe Magnifier Precious Metals 999 925 Scrap

9.1

9.1

8.9

How do we rank?

How do we rank?

Analyzing top stores

2

Purity Testing Kit for Diamonds Gemstones Moissanites Gold Silver and Platinum Jewelry Electronic Digital Diamond Tester Machine JSP GTE

3

HMKIS Diamond Tester Pen, Professional Jewelry Diamond Tester with 60X Jewelry Loupe Magnifier, Diamond Selector for Novice and Expert (Non-Rechargeable)

8.9

8.0

8.0

4

Diamond Tester,High Accuracy Jewelry Diamond Tester Professional Diamond Tester Pen Jeweler Tool for Novice and Expert - Diamond Selector II 9V Battery Included(Black Diamond Testers)

5

Gold Silver Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Platinum Palladium Test Precious Metals 999 925 Scrap

6

Diamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Tester Pen Professional (Metal Detection Limitation)

8.0

8.0

8.0

7

Diamond Tester Professional Pen Tool - KETAR Diamond Rings Jewelry Testing Kit Black Diamond Jewelry Tools Fake Diamonds Gem Tester - Real Diamond Tester Battery Tester Gemstone Diamond Checker Tool

8.9

8.0

8.0

8

Professional Gold, Silver, Platinum Jewelry Testing Kit with Stone Instructions and Box with 30X Eye Loupe Magnifier Precious Metals 10K 14K 18K 24K 999 925 Scrap

8.9

8.9

8.9

9

Gold Silver Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Test Precious Metals 999 925 Scrap

8.9

8.7

8.7

10

Diamond Tester Pen＋60X Mini LED Magnifying,High Accuracy Jewelry Diamond Tester Tool,Environmental Protection 9V Battery,Professional Diamond Selector for Novice&Expert,Thermal Conductivity Meter

9.5

9.3

9.1

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