Diamond Tester - High Accuracy Jewelry Diamond Tester for Novice and Expert

Diamond Tester - High Accuracy Jewelry Diamond Tester for Novice and Expert

$24.99
Sale price  $24.99 Regular price 
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Diamond Tester - High Accuracy Jewelry Diamond Tester for Novice and Expert
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Diamond Tester - High Accuracy Jewelry Diamond Tester for Novice and Expert

$24.99
Sale price  $24.99 Regular price 
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Diamond tester pen · LED bar and audio tone · Kit with case and platform

Know if your diamond is real in seconds.

If you are in the market for a diamond, you want to be sure you are getting the real thing. Touch the probe tip to the stone and the LED bar and audio tone give you your answer, so you can buy, wear or sell with confidence.

It is a pen-style tester you can run yourself at home, at the jeweler’s or on the go, with the carrying case and testing platform in the kit.

At home

Settle the question at your own kitchen table.

Switch it on, wait for the READY lamp, touch the tip to the stone and read the LED bar. A real diamond lights the red segments and sounds the audio tone, whether the stone is loose or still set in a ring, earring or pendant.

As one buyer puts it: “Looking for something simple and it works, this is it.” (Darrell P.)

Woman testing a solitaire diamond ring at a sunny kitchen table by touching the diamond tester's probe tip to the stone

On the go

Take the answer to the antique market and the jeweler’s counter.

The pen body is about 6 inches long and lightweight, and the included carrying case keeps the tester protected in a pocket or bag. Check the stone in the tray before you buy it, wherever you are shopping.

A buyer says: “Item shipped and received quickly and as advertised.” (Misty T.)

Man testing a vintage diamond ring with the diamond tester at an antique market table, rings on a tray behind

How it works

Three steps to your answer.

Switch on

Slide the VOLUME switch to ON. The BATTERY lamp confirms power and the READY lamp lights when the tester is ready.

Touch the tip

Touch the probe tip lightly to the stone, set loose on the testing platform or still in the jewelry.

Read the result

Watch the LED bar and listen for the tone. Red segments and the audio tone signal a real diamond.

See it. Hear it.

An LED bar and an audio tone make the answer easy to read.

The LED bar runs from green through yellow and orange to red against a scale from 1 to 8. With easy operation, LED light and audio result indication, and simple calibration for stones of various sizes, it is easy to tell whether your diamond is real or fake.

The volume control lets you set the audio tone to suit the room.

Close-up of the diamond tester's LED bar glowing green to red on a 1 to 8 scale beside the DIA, battery and ready lamps

What buyers say

Rated 4.8 out of 5 by buyers.

★★★★★

“Easy to use, inexpensive, and it’s just a fantastic tool to have! Well worth the money! You will not be disappointed!”

James C.
★★★★★

“Looking for something simple and it works, this is it.”

Darrell P.
★★★★★

“Item shipped and received quickly and as advertised.”

Misty T.
★★★★☆

“…testing diamonds is very simple. Directions are clear.”

Jo N.

Loose stones

Rest a loose stone on the platform and test it.

The included testing platform steadies loose stones, with a recess for each size, so you can test your diamonds quickly and efficiently.

Stones already set in jewelry can stay right where they are: touch the fine probe tip to the stone and read the result.

Diamond tester probe tip touching a loose diamond resting in the metal testing platform

Everything in the kit

Tester, platform, case and manual, ready to go.

The carrying case keeps the tester protected between tests, and the detailed user manual explains how to use the tester and interpret the results. You get everything you need to make an informed decision about your diamond purchase.

Lightweight and pocket-size, it goes wherever the stones are.

Diamond tester and black carrying case on a cafe table as a hand picks up the tester

Why it is worth having

A quick first check you can run yourself.

A jeweler’s counter is rarely close by when you need it. With the tester in your pocket you can run the first check on the spot and decide with confidence.

2

Signals

An LED bar and an audio tone confirm the result.

4

Items in the kit

Tester, testing platform, carrying case and user manual.

90

Days risk-free

Try it with confidence under our 90-day returns.

Details

Specifications and what is in the box.

What it isPen-style electronic diamond tester, model name Diamond Selector II
How it worksA thermal-conductivity probe: the tip reads how readily the stone conducts heat
IndicatorsLED bar graph on a 1 to 8 scale, DIA lamp, BATTERY lamp, READY lamp, audio tone with a volume control
ProbeFine metal tip under a black cone, with a removable protective cap
PowerOne 9V battery in the snap-in battery bay (sold separately)
Size6.1 x 1.6 x 0.8 in (155 x 41 x 21 mm)
Material and colorABS body in dark gunmetal gray, black probe cone, black carrying case
In the box1 diamond tester, 1 testing platform, 1 carrying case, 1 user manual

One more thing: moissanite conducts heat much like diamond, so use a dedicated moissanite test when that is the question.

Know what you are holding.

Pick up the kit, switch on and find out in seconds whether your diamond is real. Every order is covered by our 90-day risk-free return policy.

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