Best Multi Gemstone Tester Reviews & Alternatives

A multi gemstone tester can be a great investment for those who want to simplify their work needs. With the increase in standing desk popularity, many people looking for the best multi gemstone tester feel overwhelmed by the wide range of options available. From traditional multi gemstone tester  to convertible models, the dizzying slew of choices might make you feel the need to take advantage

What are the features that make the best multi gemstone tester? These compact and convenient multi gemstone tester are easy to install and easy to use at the same time. And then there’s the price! Below, we’ll run through the average multi gemstone tester cost of some of the most popular types, so you can get a good idea of where to start with your budget.

The reasons you should trust us

We recommend products in each review using an intensive research process, spending hours combing through the best available models on Amazon. For a product to make our list of top picks, it must hold a solid sales record on Amazon, have consistently positive customer reviews, and offer unique features, among other factors. After narrowing down our recommendations, we conduct additional research to ensure that the products meet our standards. Once we conclude the research phase, we craft a well-rounded, user-friendly article that includes our recommended products and additional information to help homeowners like you make the right purchase. The following key factors are considered when analyzing:

  • The quality of multi gemstone tester
  • Each product’s design
  • How it’s built
  • Price comparison
  • How durable [replace-keyword] is
  • Features
  • Cost-effectiveness
  • Versatility
  • Product usability
  • The functionality of the multi gemstone tester
  • Performance of the products
  • Product dimensions and weight
  • Return policy and warranty, and more.

Best multi gemstone tester & Features

1. Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored Gemstones

Features :

  • INCLUDED ASSISTED THERMAL CALIBRATION | Now easily self calibrate your device to your testing environment
  • INDUSTRIES MOST TRUSTED | Gemstone tester redesigned to be more compact, sturdy and portable
  • THINNEST RETRACTABLE PROBE TIP I PGT II features the industry’s thinnest retractable probe tip
  • VERSATILE AND RELIABLE | Consistent and reliable results every time. Identifies diamonds/moissanites
  • SIMPLE & EASY TO USE | Clear and easy-to-read analog dial; Can differentiate 16 types of gemstones

Additional Info :

Color Black
Item Dimensions
Height 3.8
Width 4.5
Length 7.8

2. Presidium Multi Tester III (PMuT III) All-In-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants

Features :

  • IMPORTANT TO NOTE: This product needs to be calibrated prior to use. If you experience issues with calibration, please reach out to the seller for assistance prior to returning the item.
  • EASY TO USE DESIGN: Ergonomic handheld design with a rubberized anti-slip grip for easy handling. Light and portable with a convenient carrying case.
  • THINNEST RETRACTABLE PROBE TIP: Retractable probe tip that ensures consistent pressure against the gemstone during testing for more reliable results. With the industry’s thinnest probe tip size of 0.6mm, the PMuT III tests colorless diamonds as small as 0.02ct.
  • CLEAR, CONVENIENT DISPLAY: 180-degree multi-viewing LED display for easy readability for either right or left-handed use
  • ALL-IN-ONE INSTRUMENT: The world’s first tester that tests for both colorless diamonds and moissanites in a single instrument. Powered by 3 AAA batteries.

Additional Info :

Item Dimensions
Height 8
Width 2.4
Length 3.4
Weight 226

3. PRESIDIUM PDT II Duo Tester Diamond MOISSANITE GEM Stone Jewelry

4. Letmexc New Moissanite Loose Stone Lab Diamond Gemstone VVS1 Positive Passed Presidium Multi III Diamond Tester , without GRA Report (1.0)

Features :

  • It is a new special Moissanite gemstone that can pass the Presidium Multi Tester III and is therefore very close to natural diamonds in terms of color, clarity, fire, refractive index, etc. This new moissanite color is closer to a natural diamond, if you’re interested, check out this tester on Amazon.
  • Carat weight and measurements of moissanite is as follows : 0.5ct=5.0mm, 1.0ct=6.5mm
  • Please check our video for more information, this new moissanite is not include GRA certificate
  • This moissanite passed the Presidium Multi Tester III only , other tester pens are not guaranteed to pass the testing

Additional Info :

Color D color

5. Portable Diamond Tester, Illuminated Loupe Jeweler Jewelry Tool Kit, Gemstone Tester, for Diamond, Sapphire, Ruby, Crystal, Agate, Jade, gems Multi Gemstone

Features :

  • LED Light and Audio Result Indication: The red light will be showed and the audio indicator will ring if the stone is real diamond. Simple calibration for stones of various sizes.Accurate and reliable reading
  • Features: The thermal conductivity meter is designed and manufactured according to the thermal conductivity of diamond. It is specially used for the identification of the true and false of diamond
  • Apply to: Excellent kit for anyone who handles loose or set diamonds & gemstones and other jewelry and precious metals items
  • Widely Used: Portable Diamond Tester can be used for jewelry, diamond, document, and currency authentication
  • Notice: No matter what gemstone you are testing, the probe needle and the tested object must be at a 90° angle

Additional Info :

Item Dimensions
Height 1.3779527545
Width 2.2440944859
Length 7.3622047169
Weight 0.2645547144

6. Gemlogis Mantis Diamond 3 in 1 Multi Tester & BLEU Gemstone Referential Meter Set

Additional Info :

Item Dimensions
Weight 4

7. Multi Diamond Tester Gemlogis Bleu & Belize Rechargeable Colored Stone Tester Diamonds, Moissanite, Simulant Earth Mined and Type lla/CVD/HPHT Gem Stones Testing Machine (Full Set)

Features :

  • Touch screen LCD Display- Able to Display more stone types compared to a static dial face with limited space.
  • Further segregate stone types by color selection
  • Infrared communication to the BELIZE and MANTIS
  • Foolproof test disc for diamond, simulant, and glass.
  • Long Lasting rechargeable lithium battery-Includes AC Adapter-ONE YEAR WARRANTY.

Additional Info :

8. Clina Jeweler Tester Tool, Professional Gemstone ldentification, Gem Refractometer, High Accuracy Professional Portable Diamond Tester Jewelry Gem Gemstone Selector Precision Tool RHG181 1.30-1.81

Features :

  • High quality: Quickly and accurately identify single and double gems. Low battery consumption and long life. Made of high quality ABS material, sturdy structure and long service life.
  • High precision and easy operation: The refractometer is highly accurate and easy to operate. Cost-effective, easy to operate without mistakes, is a stable diamond measuring instrument.
  • Specially designed: Designed to measure the refractive index of gemstones and solid materials. Let you measure more accurately. Set design, more economical and cost-effective, save costs for your jewelry making work.
  • Low cost and high return: This gem refractometer is a low-cost, lightweight measuring instrument used by jewelers and gem traders to measure polished gemstones with a refractive index ranging from 1.30 to 1.81 RI.
  • Compact and easy to carry: The RHG-181 gem refractometer is specially used to measure the refractive index of gems and solid materials. The size is about 13 * 6 * 3.5 cm/5.1 * 2.4 * 1.4 inches. It is characterized by its compactness and lightness, and is very popular in the jewelry industry.

Additional Info :

Color default
Item Dimensions
Height 1.3779527545
Width 2.362204722
Length 5.118110231

9. GemOro Testerossa Talking Diamond, Moissanite & White Sapphire Tester, Silver

Features :

  • Country Of Origin: China
  • Model Number: 0770
  • Item Package Dimension: 25.0″ L x 14.0″ W x 17.0″ H
  • Item Package Weight: 2.0 lb

Additional Info :

Color Silver
Item Dimensions
Height 1
Width 1.75
Length 6.75

10. Presidium Instruments Gem Tester II (PGT II) Now with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored Gemstones

Features :

  • NOTE: The calibration may be affected during shipping. If you have issues, reach out to the seller.
  • INDUSTRIES MOST TRUSTED gemstone tester redesigned to be more compact, sturdy and portable.
  • THINNEST RETRACTABLE PROBE TIP: PGT II features the industry’s thinnest retractable probe tip.
  • VERSATILE AND RELIABLE: Consistent and reliable results every time. Identifies diamonds/moissanites.
  • SIMPLE & EASY TO USE: Clear and easy-to-read analog dial; Can differentiate 16 types of gemstones.

Additional Info :

Item Dimensions
Height 7.8
Width 3.8
Length 4.5

Buying Guide for multi gemstone tester

To help you buy the perfect multi gemstone tester for your needs and requirements, we have mentioned some of the best multi gemstone tester in this article. Not only that, but you can also learn about their differences as we have mentioned their major features and options.

To help you on your way, we’ve listed some questions you may want to consider before making any purchase.

  • Why do I want to buy this?
  • Do I need it or just want it?
  • Am I getting the best deal?
  • How often will I use it?
  • Can I pay cash for it?
  • Is it budgeted for?
  • Can I borrow it?
  • Can I get it used?

Although, if you still want to learn more about these multi gemstone tester for buying the perfect one, we are here with a detailed buying guide just for you. Since this buying guide is related to multi gemstone tester, you can find many major features and aspects related to multi gemstone tester. Thus, you can easily choose the perfect one by going through this article until the end.


The multi gemstone tester should last more than one use and hold up against normal wear and tear. We recommend reading the product description before purchasing multi gemstone tester to ensure they’ll last a while. Additionally, pay attention to the wash instructions.


When choosing the best multi gemstone tester, you must consider its versatility.  It is important to make sure that your unit can be used for performing different tasks.

For instance, if you need to use your unit for other purposes in any other materials, getting the one with a versatile design will be an ideal option for you.


The brand is another crucial factor you must consider while looking for the multi gemstone tester.  You will find both well-known and unknown brands in the market. If you are looking for a reliable and durable model, I recommend getting one from a well-known brand.

They use high-quality materials and the latest technology to manufacture their products.  As a result, you will be able to get a durable and long-lasting multi gemstone tester.

Ease of Use

While choosing the multi gemstone tester, you must ensure that it is easy to use.  It is important to get the one that comes with a user-friendly design.


As a result, you will be able to use your unit for a long time without facing any discomfort.  Also, getting the one that comes with an easy-to-use design will help you save a lot of time and effort.


The price is another essential factor you must consider while looking for the multi gemstone tester.  You need to get the one that fits your budget perfectly.

Getting the one that comes at an affordable price will help you save a lot of money.  However, you must ensure that it meets your needs and requirements perfectly.


The multi gemstone tester should be easy to carry for you. Therefore, consider the size, style, design, and all the other basic features to check for the actual portability of the device. Portability comes with comfort and ease, and you need to look for all the features to look for a suitable multi gemstone tester.


The price of your multi gemstone tester will depend upon its features and the overall quality. There are some inexpensive options in the market, but they may not have the best features.

The term ‘budget’ is broader because it completely depends on the user who wants to purchase the multi gemstone tester. In this case, you can prepare a list of all the features you want to have in your multi gemstone tester. Then, look for the product that comes with these features and works well.

After that, you should carefully check the prices of each air compressor machine on your list. This will give you a precise idea about the budget you need to prepare for the multi gemstone tester you should go after.


It is important to consider your unit’s weight while working in congested areas. Getting a lightweight model will be ideal if you need to work regularly in difficult-to-reach places.

However, if portability is not your concern and you are looking for a durable model, you can go for the one with a little heavyweight.


The warranty of multi gemstone tester is when the manufacturer offers free repairs or replacements for any damages that occur to the product.

You need to check the warranty of multi gemstone tester before buying it, as you don’t want a product that doesn’t come with a warranty.

At the same time, you also need to remember that some multi gemstone tester come with a longer warranty than others, so select one with a long warranty if possible.

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