Search

*Disclaimer: Tossions earns a commission from qualifying purchases.

The 8 Best refractometer gemstones of 2025

Are you trying to find refractometer gemstones among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling refractometer gemstones on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 14 hours of research and did 48 refractometer gemstones tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best refractometer gemstones you can buy today

No. 1
Jewelry Refractometer, Portable Lightweight 1.30-1.81 Professional Gemstone ldentification Gem Refractometer for Measuring The Refractive Index Jewelry Test Tool
  • GOOD FEATURES: Lightweight and compact, easy to carry. The product is stable in performance and used by customers who say it is good
  • HIGH QUALITY MATERIALS: Low battery consumption for long service time. Good quality is our goal. Only high quality can satisfy customers' satisfaction. Customer satisfaction is our driving force
  • APPLICATION FUNCTION: Identify single and double gems quickly and precisely. You will be very happy with the many uses to meet your needs
  • DESIGN CONCEPT: Specially designed for measuring the refractive index of gemstones and solid materials. The minimalist design style makes it very suitable for use
  • OUTSTANDING ADVANTAGES: This refractometer features high accuracy and easy operation. Considered by many to be the most important of all gem testing instruments
No. 2
Ade Advanced Optics GL500 Gemological Gemstone Gem Refractometer Built-in Light, Aluminum Body with Optic Lens
  • Quality all metal construction
  • Measurement range of 1.30 - 1.81
  • Built-in LED light source with 3 x 1.5v batteries - included
  • Considered by many to be the most important of all gem testing instruments
  • Polarizing Filter, Hard and soft cases are included
No. 3
Generic Jewelry Refractometer, Portable Gem Tester, Professional Gemstone Tester, Gem Refractometer, Measures Refractive Index 1.30-1.81, Flashlight Included, Easy to Use
  • Refractometer measures refractive indices from 1.30 to 1.81, used to identify many common gemstones, including but not limited to ruby, sapphire, jade, cat’s eye, amethyst, garnet, and opal
  • Refractometer built to provide stable and consistent performance
  • Refractometer designed to be portable and easy to carry around
  • Refractometer provides simple and straightforward operation
  • Gem refractometer is an ideal for tool for gemologists and jewelers
No. 4
Gem Portable Refractometer, RHG181 1.30-1.81 Presidium Gemstone ldentification Tester for Jewelry, Gold & Silver and Diamond, Lab Refractometers
  • 【Professional Design】This refractometer is specially designed to measure the refractive index of gemstones and solid materials. The minimalist design style makes it very suitable for use.Considered by many to be the most important of all gem testing instruments.
  • 【High Quality】Quality all metal construction, low battery consumption can be used for a long time.Approved by strict quality and safety standards and is trouble-free to use.
  • 【Package Contents】Built-in LED flashlight, 30x jewelers loupe in silver housing, one of the most important gemstone identification tools.Quality gemological refractometer with a bottle of 3ML jewelry identification special refraction oil.
  • 【Product Advantages】The refractometer is stable in performance, High precision and easy operation, lightweight and compact, easy to transport and carry.
  • 【Professional Functions】Identify single and double gems quickly and precisely.Measurement range of 1.30 - 1.81.Helps identify diamonds, moissanite and colored gems, speeds up the identification of gems in the package.Gemstone Refractometer is the most important and powerful tool for identifying and authenticating polished gemstones and semi-precious stones, as well as for observing the optical properties and structure of precious stones.
No. 5
Gem Refractometer , RHG181 1 . 30 to 1 . 81 Professional Gemstone ldentification Portable Gem Refractometer for Jewelry Gold Silver for Portable Lab Refractometers
  • ACCURATE GEMSTONE RECOGNITION : Our refractometer is specially designed to measure the refractive index of gemstones and solid materials , providing important gemstone recognition as it differs from gemstones to gemstones .
  • PORTABLE AND EASY TO USE : Our refractometer is highly accurate , lightweight , and compact , making it easy to carry and operate . It is also one of the few instruments that can provide you with information on opaque gems and transparent gems .
  • INCLUDES REFLECTIVE INDEX FLUID : Our kit contains 3ml Reflective Index Fluid , which helps eliminate possible gems by values such as R . I . , Color , Hardness , and S . G . If you need to supplement the fluid , you can search B0B9W71HGL in our store to buy .
  • QUICK & IDENTIFICATION : Our refractometer quickly and accurately identifies single and double gems , including diamonds , moissanite , and colored gems . It does not require RI liquids and provides uniform and results each time , with a clearly visible display for easy reading measurements .
  • EXCELLENT AFTER SALES SERVICE : We are committed to serving our customers wholeheartedly and improving our product based on your feedback . If you have any questions or concerns , please feel to us , and we will do our best to meet your requirements and solve your problems quickly and efficiently .
No. 6
Presidium Electronic Refractive Index Meter II
  • Presidium Refractive Index Meter II (PRIM II), Separates diamonds, moissanites and gemstones via its Refractive Index in seconds! By accurately measuring the quantity of light reflected through the stone, Presidium Refractive Index Meter II (PRIM II) is able to separate diamonds, moissanites and other colored gemstones via its Refractive Index (RI) on flat surfaces of polished gemstones.
  • Unlike a traditional refractometer, PRIM II is able to measure the range of RI value from 1.000 to ~3.000, therefore covering the commonly known gemstones in the market, including diamonds and moissanites, In addition, a fast and easy test can be done, without the inconvenience and messy usage of RI liquid.
  • The new software enables the user to further eliminate the list of possible colored gemstones by entering known values such as color, hardness and S.G. value, Further information regarding gemstone properties, common found locations can also be easily found.
  • Features : PRIM II Software An enhancement to enable users to further eliminate the list of possible colored gemstones by entering known values such as color.
  • hardness and S.G. value, Powered up by USB... For more details please check product description.
No. 7
Leftwei Gem Refractometer, Professional Gemstone ldentification Gem Refractometer Refractive Index Meter Jewelry Test Tool with 3 ML Reflective Index Fluid for Gemologists, Jeweler
  • 【Professional Jewelry Refractometer】This refractometer is designed to measure the refractive index of gemstones and solid materials. Many consider gem refractometers to be the most important of all gem testing instruments. The main purpose of a refractometer is to measure the angle at which light is bent or refracted by a stone
  • 【Portable Refractometer】The refractometer is very accurate and can help identify the authenticity and type of gemstones. Due to its light weight and compact structure, the refractometer is very portable and can be conveniently taken anywhere. Refractometers are a very useful tool for gemologists and jewelers
  • 【Quick Identification Results】Jewelry refractometers can quickly and accurately identify single and double gemstones. Professional refractometers help users identify diamonds, moissanite and colored gemstones. It provides uniform and reliable results and is equipped with a clearly visible display for easy reading of measurement results
  • 【Reflective Index Liquid】This refractometer has the characteristics of high precision and convenient operation. Low battery consumption, long lifespan. Possible stones are continuously ruled out by values such as R.I., Color, Hardness and S.G. Tested on clear stones and polished flat, kit contains 3ml reflective index fluid
  • 【Perfect After-Sales Service】We strive to provide high-quality and convenient services. We attach great importance to your opinions and feedback, and hope to continuously improve our products and services to bring you a better experience. Thank you for supporting us! If you have any other questions, please feel free to contact us
No. 8
BRRNOO Gem Refractometer - Professional RHG181 1.30-1.81 Gemstone Identification Tool with 3ml Reflective Index Fluid - for Gemologists, Travel, and Portable Lab Suitcase
  • [SPECIALLY DESIGNED]: This refractometer is specifically designed for measuring the refractive index of and solid materials. It is considered one of the most important test instruments, providing accurate measurements of how light is refracted through a stone.
  • [HIGH PRECISION, COMPACT AND EASY TO CARRY]: Highly accurate and easy to operate. Lightweight and compact, making it convenient to carry. Provides crucial recognition and differentiates between opaque and transparent .
  • [REFRACTIVE INDEX FLUID]: Eliminates possible based on values such as R.I., color, hardness, and S.G. Tests transparent with a flat polished surface. Includes a 3ml bottle of refractive index fluid. If you need additional fluid, please contact our customer service or search for B0B9W71HGL in our store.
  • [QUICK IDENTIFICATION]: Enables quick and accurate identification of single and double . Helps identify , moissanite, and colored . Speeds up the identification process and does not require additional RI liquids. Provides consistent and reliable results with a clearly visible display for easy reading.
No. 10
Chelsea Filter, Dichroscope, Jewelers Loupe, Gemological Refractometer - Gem Identification Tools, Bundle 6 Items
  • Chelsea Filter - now used to identify mostly any gemstone
  • Dichroscope - invaluable for distinguishing certain stones from similar gems.
  • 10x triplet jewelers loupe in black housing-one of the most important gemstone identification tools.
  • Quality Gemological Refractomer with 10 grams of Certified RI. 1.80 Liquid included.
  • BONUS - GEMSTONES OF THE WORLD book by Walter Schumann.

How to choose a good refractometer gemstones

Does the idea of finding a fantastic refractometer gemstones make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in refractometer gemstones. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top refractometer gemstones products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top refractometer gemstones on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top refractometer gemstones brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top refractometer gemstones based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the refractometer gemstones were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good refractometer gemstones, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your refractometer gemstones.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting refractometer gemstones for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our refractometer gemstones. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what refractometer gemstones should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on refractometer gemstones.