10 Best Diamond Detectors
for February 2024

MOOZ Themes editors select recommendations independently, so your purchase through our link may earn us a commission.

Diamonds have been treasured for centuries. They're beautiful, sparkly, and rare, making them a coveted gem. In fact, they're so rare, that only about 10% of the diamonds mined in the world are gem quality.

Diamonds occur in nature as tiny specks, but are typically mined from the ground. They are then cut and polished into beautiful, sparkly stones. Diamonds, like other gemstones, are valuable due to their rarity, and their value increases with size, color, and cut.

Diamonds are the hardest mineral on Earth, so they're perfect for cutting and polishing. In fact, diamond is the hardest substance known to man, which is why they're perfect for cutting and polishing.

Diamonds can be cut and polished into a variety of shapes, including round, square, and emerald. Diamonds are valued for their rarity, purity, and hardness. The purity of a diamond can be determined by its color, and diamonds are valued for their color, clarity, and size.

Diamonds also come in different grades, including D, E, and F. Diamonds of different grades are priced differently. Diamonds of lower quality, such as D and F, are less expensive, while higher quality diamonds, such as G, H, and I, are more expensive.

1
9.5
SCORE
High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X 60X Illuminated Jewelry Eye Loupe Mini Led Foldable Magnifying Jewelry Distinguish Tool (Black Tester, Black Loupe)

Weewooday High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X Illuminated 60X Jewelry Eye Loupe Mini Led Foldable Magnifying Jewelry Distinguish Tool (Black Tester

by Weewooday

Size details: the jewelry diamond detector measures about 6.3 x 1.7 x 0.8 inches, mini and portable for you to hold or store, offering you a lot of convenience; The Jewelry loupe is about 2.0 x 1.2 x 1.1 inches, so you can hold them to see diamonds easily, without too much burden when in use

The High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X 60X Illuminated Jewelry Eye Loupe Mini Led Foldable Magnifying Jewelry Distinguish Tool (Black Tester, Black Loupe) is an easy-to-use, accurate tool that's ideal for beginners. The tester scans the item you want to test, and the item with a clear data image will be a true diamond, and an item with a clear data image below 7 will be a true emerald crystal agate. The tester itself is small and lightweight, and it comes with multiple uses, making it convenient and practical. The tester and loupe are both made of premium aluminum alloy, and both come with a black color, which makes them suitable for using in different lighting conditions. The loupe is equipped with a 30X 60X lens, but its magnification is not as high (as high as 30X) as similar loupes on the market. However, the loupe has a clear lens, so it'll be easy to identify the item you're testing. The tester and loupe are both equipped with a USB charging slot, which makes it possible to use the testers and loupes for a long time. The tester and loupe can be used for an extended period of time, and they come with a 12-month warranty.

2
9.5
SCORE
Professional Jewelry Diamond Gem Testers Pen, Portable Diamond Gemstone Detector Checker Tool, Real Diamond Selector ll Kit with 60X LED Magnifying Glass (Including Battery)

Beaudin Professional Jewelry Gem Diamond Testers Pen

by Beaudin

Professional Products: A portable electronic device designed for fast, accurate and safe diamond testing.

This pen-style diamond tester kit is portable and easy to use. The built-in 60x LED magnifying glass is much better than the one included in the previous model, and the battery lasts for about 10 hours. To test a diamond, just place the diamond on the test tray, press the power button, and the indicator will light up a bit. If the diamond is fake, it will not display and make a sound. If it is a real diamond, the indicator will light up a bit more. The tester can also detect metal, and when a metal object accidentally hits the stone, it will sound an alarm. The tester performed well in our tests, and it detects diamonds and gemstones quickly and accurately.

3
9.5
SCORE
Jeweler Diamond Tester, High Accuracy Portable Gemstone Jewelry Gems Selector LED Indicator Detector Tool with Protective Case for Diamond Testing

Hyuduo Jeweler Diamond Tester

by Hyuduo

Easy to CarryThe diamond tester adopts a highly compact design, has the characteristics of light weight, easy to carry, simple and accurate operation.

The jeweler diamond tester is a portable electronic device designed for fast, accurate and safe diamond testing, distinguishing real diamonds from other simulated diamonds. Strong PracticalityThe LED diamond tester will show the result of whether your diamond is genuine or fake, which is very practical in real life. Safe to UseThe product is in accordance with strict quality standards and quality control before leaving the factory. It has good safety performance and can be used with confidence. The tester consists of three parts: a digital tester, a measuring tape and a protective case. The diamond tester uses a 4-digit LED display to show the result of whether your diamond is genuine or fake. The LED display is very easy to read. When testing diamonds, use the measuring tape to measure the length of the diamond. Note: The tester is for measuring the length between 2 points. Do not measure the length of the whole diamond, because the length of the whole diamond is longer than the length of the 2 points. Then, put the measuring tape onto the diamond tester. If the measuring tape slides onto the diamond, your diamond is genuine. If the measuring tape does not slide onto the diamond, your diamond is fake. The diamond tester is very convenient to use. The tester has an elegant and portable design. It is suitable for people of various ages. It is also easy to use. The diamond tester is of light weight and easy to carry. It is suitable for testing gems, pearls, coral rings, etc.

4
9.4
SCORE
Lotustech Diamond Tester,High Accuracy Diamond Tester Pen,Professional Diamond Detector for Novice and Expert(Black,Battery Included)

Lotustech Diamond Tester

by Lotustech

[fast and safe ]: This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds.

The Diamond Tester from Lotustech is an easy-to-use gadget that instantly detects diamonds. It comes with an instruction manual and battery, and it's small enough to fit in your jeans' pocket. The tester can test your diamond jewelry, but it works best for small diamonds (less than 1 carat) or loose diamonds. The tester is very easy to use. Just hold the tester over the diamond, and it will make sounds, or it will blink and flash. With 9V battery, the tester can last for about 8 hours. The tester comes with 2 different probes, one is for checking small diamond, and the other is for checking loose diamond. The tester also has 3 different light modes: Normal, Flashlight, and Moonlight. The Normal mode works well for testing small diamonds and loose diamonds. The Flashlight mode works well for testing loose diamonds. The Moonlight mode works well for testing small diamonds. The tester also comes with 3 different probes: 10mm, 15mm, and 20mm. The 10mm probe works best for testing small diamonds and loose diamonds, and the 15mm and 20mm probes work best for testing loose diamonds. The tester comes with a few pieces of protective glasses, and it's very useful. The tester also comes with a 1-year warranty.

5
8.9
SCORE
Diamond Tester Pen, High Accuracy Jewelry Diamond Tester Pen Professional Diamond Detector, Electronic Diamond Gem Tester and Tester Pen 60X Magnifying Glasses Tool Kit for Novice Expert

Broadsheet Diamond Tester Pen

by Broadsheet

Accessory tools Magnifying glass (small microscope) equipped with 60X LED illumination. Diamond test pen can be used for gems, coins, antiques, stamps, reading, inspection, etc. Diamond tester pen is designed for fast, precise and safe diamond testing.

The Diamond Tester Pen, High Accuracy Jewelry Diamond Tester Pen Professional Diamond Detector, Electronic Diamond Gem Tester and Tester Pen 60X Magnifying Glasses Tool Kit for Novice Expert is a handy, inexpensive tool that can quickly and reliably identify whether a diamond or gemstone is fake or not. It works well for diamonds and gems with shallow inclusions, such as Moissanite, Cubic Zirconia, and synthetics, but it's less effective for diamonds and gems with deeper inclusions. The tester pen works by taking an electrical current from the tip to the receiver, where it measures resistance. If the tester detects resistance, it beeps and indicates that the gemstone is fake. The tester also detects metal inclusions, so it's suitable for detecting fake or poorly made jewelry. The tester pen is about the size of a lipstick, making it a useful travel accessory. The tester pen is light, durable, and easy to operate. The tester has LED lights and audio instructions. The tester pen is waterproof, so it's suitable for testing jewelry while bathing, showering, or swimming. The tester pen is battery-powered, so it's convenient to use anywhere. The tester pen is reliable and inexpensive. The tester pen is an easy-to-use, quick, and accurate diamond and gemstone detector.

6
8.9
SCORE
2pcs Diamond Tester Tool Set, Diamond Tester Diamond Tester Diamond Detector Selector, Gems Stone Hardness Test Tool Diamond Testers 品牌所有者加微信 djddbyd

Salmue 2pcs Diamond Tool Tester Set

by Salmue

PACKAGE INCLUDED 1 * Diamond Selector II, 1 * Moissanite tester, 2 * Manuals, 2 * Trays, 2 * Batteries (9V)

The Diamond Tester Set is an indispensable tool for jewelry designers and jewelers who want to identify the differences between diamonds, moissanite, and sapphires. The instrument comes with an LED indicator light, which flashes green for diamonds, blue for moissanites, and red for sapphires. The LED indicator also turns red when the instrument touches metal, such as jewelry clasps. The Diamond Tester Set has a switch to control its intensity, and it comes with a protective sleeve and a soft pouch. The instrument is sturdy and well-made, and its sturdy construction ensures that it will last for many years. The Diamond Tester Set runs on a AAA battery, which is not included.

7
8
SCORE

The PuriTEST 6 Pack is an all-in-one solution for detecting precious metals. It includes a 2x2" gold testing stone, a 10 gram silver testing bar, a 5 gram gold testing bar, a 5 gram platinum testing bar, a 30X eye loupe, and a metal file tool. The gold testing stone is white, and the gold, silver, and platinum testing bars come in different colors, so you can easily tell them apart. Each testing solution comes with its own calibration weight, which you can write on with a pen or pencil so it's easier to scale. The eye loupe has a 100X magnification, so you can see even the smallest speck of gold. The scale has 2 weighing modes: grams and carats, and it's accurate to 1/10 of a carat. The loupe makes it easy to see jewelry or gemstones up close, and it's perfect for jewellers, pawn shops, and coin collectors. The detector is lightweight and small, and it picks up both gold and platinum, though it can only detect silver. It works by shining the light on the item to detect any sparkles, and it can tell you how much gold or platinum is in it. The detector is very sensitive, so it's perfect for scanning jewelry. The file tool has 10 different cutting blades for cutting wire, jewelry, or metal. It's perfect for jewellers, pawn shops, and antique dealers. The file tool has a safety cap so it doesn't get damaged. The file is sharp, so be careful when using it as a knife.

8
8
SCORE
High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X 60X Illuminated Jewelry Eye Loupe Mini Led Foldable Magnifying Jewelry Distinguish Tool (Black Tester, Black Loupe)

Hqdz High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X Illuminated 60X Jewelry Eye Loupe Mini Led Foldable Magnifying Jewelry Distinguish Tool (Black Tester

by Hqdz

[Easy to Use,Intuitive Design]: Real Diamond will Emits sounds and lights >=9.Fake crystal, such as cubic zirconia ( CZ ), crystal, glass will be no sounds and lights

The High Accuracy Diamond Tester Jewelry Diamond Detector Gem Diamond Tester Pen 30X 60X Illuminated Jewelry Eye Loupe Mini Led Foldable Magnifying Jewelry Distinguish Tool (Black Tester, Black Loupe) is a sturdy, well-made, and easy-to-use tester that lives up to its claims. What makes this tester stand out is its sturdy construction. The tester is made of metal, so it feels quite strong, and the design is also sturdy. The tester is also quite portable, and the magnifier portion folds up, making it a good size for your pocket. The tester's LED lights are also bright, making it easy to see the item you want to test clearly. The tester is also easy to use. The tester's buttons are all large and easy to see, and it's a cinch to turn the tester on and start testing. The tester also stores well, so it doesn't take up much space. The tester's accuracy is also quite good. The tester's LED lights are bright enough so you can test diamonds, gemstones, and other small items easily, and it can identify diamonds and gemstones as accurately as our other top pick. The tester's 30X 60X lens is also quite effective. It will allow you to test small items, and even identify them clearly. The tester's loupe is also quite effective, and the LED lights make it easy to see small items clearly. The tester's loupe is the same size as the one on our other top pick, the 9.7 Inch Portable Jewelry Loupe, which means it's quite portable, and it's a good size for sharing.

9
8
SCORE
Sutinna White Tester Gem Tester, Diamond Detector Diamond, Diamond Selector, Tester, for Women for Jeweler

Sutinna White Tester Gem Tester

by Sutinna

Lightweight and compact in size, easy and convenient to carry

The Sutinna White Tester Gem Tester, Diamond Detector Diamond, Diamond Selector, Tester, for Women for Jeweler is a nifty little device that uses a Piezoelectric Sensor to detect a diamonds electrical resistance. The tester has sharp LED lights that light up when a diamond is detected, and it uses a green indicator light to show the user whether the diamond is real or fake. The tester is lightweight and compact, and it's very easy to use. It's designed to resist dirt and water, and it's powered by a coin cell battery. It's small enough to fit in a pocket or purse, but bright enough to use in bright, sunny conditions. The Sutinna White Tester Gem Tester, Diamond Detector Diamond, Diamond Selector, Tester, for Women for Jeweler does an excellent job of distinguishing real diamonds from fakes, and it's very easy to use. It's pricy, but it's cheaper than many competing models, and it's built to last.

10
8
SCORE
Diamond Testers, Practical Jewelry Diamond Selector, Moissanite Tester, Portable Testing Detector Pen with Small Testing Tray

Diyeeni Diamond Testers

by Diyeeni

Light & Portable The tester is light and compact,accurate and reliable reading,easy to use

The Diamond Selector II is one of the most practical and accurate testers that we tested. When testing diamonds, it's important to consider several factors, including clarity, color, and fire. The Diamond Selector II measures each of these factors using a series of lights and indicators, and it does so quickly and accurately. The tester uses both LED lights and a diamond tester, and both lights can be set to different brightness levels. The tester has two different colored lights: green for diamonds and blue for moissanite. The lights emit a bright, steady glow, so they're easy to see. The LED tester is sensitive enough to detect even the smallest bits of dust, so it's less likely to miss a real diamond. The tester also has a red indicator that lights up when a stone is scratched. The tester only measures up to 1 carat, but it's fast enough to detect most 1-carat stones in about a minute. The tester's size, weight, and portability make it an excellent tool for testing small stones. The tester's batteries last about 90 minutes, and it comes with a battery cover. The tester's LCD screen is easy to read, and it's easy to calibrate the tester using the small calibration wheel. The tester's case is made of soft, high-quality leather, so it's comfortable to hold. The tester's design makes it especially easy to use, and it's one of the best testers we tested.

expand_less

I Agree
We use cookies to enhance and personalise your experience with us by collecting information about the pages you visit and actions taken on the site. More details