









💎 Test with confidence, invest with clarity!
The GTE Purity Testing Kit is a professional-grade electronic diamond tester and appraisal tool that quickly determines the karat of gold, silver, and platinum jewelry. Featuring a genuine GTE touchstone and a triplet magnifier, it safely tests diamonds, moissanites, and precious metals without damage. Lightweight and compact, this all-in-one kit includes a bonus acid neutralizer for stone cleaning, making it an essential tool for jewelry investors and enthusiasts.



| Manufacturer | GTE |
| Brand | GTE |
| Item Weight | 1.59 pounds |
| Product Dimensions | 8 x 8 x 8 inches |
| Item model number | GTE DIAMOND TESTER |
| Color | CLEAR |
| Number of Items | 1 |
| Manufacturer Part Number | GTEDT |
S**I
Follow directions and it will work for you
This is a very comprehensive kit for easily testing your thrift store finds. It comes with a very reliable diamond tester that I know works because I've tried it on a real diamond ring and a CZ ring and it was obvious the way the lights work that it could tell the difference. It's amazing that it contained everything it did for the price, I think it's a great value. The only thing I'm missing now is a small accurate gram scale. No it did not come with the carrying case it came in a plastic bag, the carrying case that it is in I bought right here on Amazon.
C**Y
"Excellent Purity Testing Kit with Outstanding Customer Service!"
I couldn’t be happier with this Purity Testing Kit! It has everything I need to test diamonds, gemstones, and metals like gold, silver, and platinum. The kit is comprehensive, with a digital diamond tester, various acid solutions, and clear instructions, making it easy to use even for a beginner.The real highlight, though, is the customer service. When the tip on my diamond tester broke, I reached out about the warranty, and they responded promptly and professionally. True to their word, they sent a replacement right away, and it arrived quickly. The company truly stands behind their product, and that gives me so much confidence in using this kit.This kit is reliable, accurate, and backed by excellent customer support. Highly recommended for anyone who needs a quality testing solution for jewelry and precious metals!
J**E
Nice all around kit
Nice all-around kit. The hard part is telling the color of the silver tester. Gemstone Tester works well.
J**L
Worth the price. Works great.
It works great and the sensitivity on it is really so good that I lost a diamond out of my ring once and got down on my hands and knees looking for it and dragged that past it on the floor. I found it very quickly! Very accurate and user friendly!
L**N
It is a very good kit and has everything you will need for testing silver, gold and diamonds.
A great purity testing kit. It has everything you need to test silver & gold and whether something has diamonds. Thank youFunctionality:Great testing kit, everything you will need.
T**R
Everything seems to work as promised
Everything in picture is included. It works correctly. Allowed me to sort out a box of old jewelry quickly. The kit was accurate with metal. The diamond tester leaves me a little unsure though. Make sure to read the directions about how to use the testers.
I**.
I was contacted to let me know how to get a refund if my order did not arrive.
My order was late. The box was in fair condition.. the case that the magnification piece was broken
A**N
Diamond tester NO GOOD
I’m not happy with diamond tester it is not accurate as far as metal tester it seems to work so far but I’m very disappointed with the diamond tester
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