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Top 17 Best Digital Gemstone Refractometers 2022 [Expert’s Reviews]

There are many different types of gemstones that can be used to refract light. Some gemstones are better at reflecting certain colors than others, so it is important to choose the right refractometer for your needs. There are a few different types of digital refractometers that can be used to measure the amount of light that is being reflected off of a gemstone. The best digital refractometers use an attention, interest, desire, and action principle to calculate the angle of incidence and reflectivity. These principles allow you to determine how well a particular gemstone is reflecting light.

There are many different types of gemstones that can be refractometers. The best type of refractometer for a variety of applications is the beryl refractometer. This type of refractometer has a very high resolution and is perfect for measuring small angles in gems.

1. Gem-n-Eye Refractometer (Digital)

Gem-n-Eye Refractometer (Digital)

Brand: Mineralab
Customer Ratings
9.8

If you’re looking for an accurate and easy to use Refractometer, the Gem-n-Eye Refractometer is the perfect choice. It has internal database of 200 gems, so there’s no need to convert values or cross reference to separate charts, or plug into a computer – it’s already a computer! The Gem-n-Eye also includes Diamond and its many simulants, along with Zircon and certain Garnets that are beyond the reach of traditional Refractometers. Additionally, the Gem-n-Eye is accurate to about .010 of an RI value, so you can be sure you’re getting the best possible results. And because it’s designed mainly for faceted gems, it gives you a digital readout[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] Accurate to about .010 of an RI value
Gives digital readout of RI and list of matching Gems, as seen on YouTube
No RI limit at 1.810
Measures RI as high as 3.300
Includes Diamond and its many simulants, along with Zircon and certain Garnets that are beyond the reach of traditional Refractometers
Accurate to about .010 of an RI [/i2pros][i2cons] Smelly and toxic fluid required [/i2cons][/i2pc]

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2. Clina Jeweler Tester Tool, Professional Gemstone ldentification

Clina Jeweler Tester Tool, Professional Gemstone ldentification

Clina Jeweler Tester Tool, Professional Gemstone ldentificationClina Jeweler Tester Tool, Professional Gemstone ldentificationClina Jeweler Tester Tool, Professional Gemstone ldentificationClina Jeweler Tester Tool, Professional Gemstone ldentificationClina Jeweler Tester Tool, Professional Gemstone ldentification
Brand: Clina, Color: default
Customer Ratings
9.6

The Clina jeweler tester tool is a very compact and easy to carry gem refractometer. It is 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. The Clina jeweler tester tool is a very cost-effective, easy to operate gem refractometer that is easy to use without mistakes. It has a high precision and can measure the refractive index of gemstones and solid materials with a range of 1.30 to 1.81 RI. The Clina jeweler t[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] Compact and easy to carry
High precision and easy to operate
Low cost and high return [/i2pros][i2cons] Not very accurate
Not very reliable
Not very durable [/i2cons][/i2pc]

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3. Digital Tester Gem Refractometer,Gem Instrument Gem Tool Professional Gemstone ldentification Built

Digital Tester Gem Refractometer,Gem Instrument Gem Tool Professional Gemstone ldentification Built

Digital Tester Gem Refractometer,Gem Instrument Gem Tool Professional Gemstone ldentification BuiltDigital Tester Gem Refractometer,Gem Instrument Gem Tool Professional Gemstone ldentification BuiltDigital Tester Gem Refractometer,Gem Instrument Gem Tool Professional Gemstone ldentification BuiltDigital Tester Gem Refractometer,Gem Instrument Gem Tool Professional Gemstone ldentification Built
Brand: DA-SHENG, Weight: 1.10231131 Pounds, Color: Onecolor
Customer Ratings
9.4

The Gem Refractometer is a valuable tool for gemologists and is just as good as the expensive models used in gemological institutes. With the aid of Contact liquid, that will create an optical contact between the glass and the gemstone, you can measure or test the Refractive Index of faceted stones, transparency or opacity, and its beauty, durability and scarcity.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] The Gem Refractometer is a valuable tool for gemologists and is just as good as the expensive models used in gemological institutes.
With the aid of Contact liquid, that will create an optical contact between the glass and the gemstone, you can measure or test the Refractive Index of faceted stones, transparency or opacity, and its beauty, durability and scarcity.
The refractive index (RI) of a gemstone provides the [/i2pros][i2cons] The Gem Refractometer is a valuable tool for gemologists and is just as good as the expensive models used in gemological institutes.
The batteries and liquids are difficult to ship, we took out the batteries and refractive oil before delivery. You need to buy batteries (3 AG13 1.5V button batteries) and refractive oil locally. [/i2cons][/i2pc]

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4. ZHIRCEKE Built-in LED Light Source – Jeweler Tester Tool Digital Gem Refractometer for Gemstone Ldentification Measure Refractive Index Gems Value

ZHIRCEKE Built-in LED Light Source - Jeweler Tester Tool Digital Gem Refractometer for Gemstone Ldentification Measure Refractive Index Gems Value

ZHIRCEKE Built-in LED Light Source - Jeweler Tester Tool Digital Gem Refractometer for Gemstone Ldentification Measure Refractive Index Gems ValueZHIRCEKE Built-in LED Light Source - Jeweler Tester Tool Digital Gem Refractometer for Gemstone Ldentification Measure Refractive Index Gems ValueZHIRCEKE Built-in LED Light Source - Jeweler Tester Tool Digital Gem Refractometer for Gemstone Ldentification Measure Refractive Index Gems ValueZHIRCEKE Built-in LED Light Source - Jeweler Tester Tool Digital Gem Refractometer for Gemstone Ldentification Measure Refractive Index Gems ValueZHIRCEKE Built-in LED Light Source - Jeweler Tester Tool Digital Gem Refractometer for Gemstone Ldentification Measure Refractive Index Gems Value
Brand: ZHIRCEKE
Customer Ratings
9.3

1.Good quality and compact design.
2.Measuring range: 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.
3.Can be used in different environments.
4.High precision and easy operation.
5.Cost-effective, easy to operate without mistakes.
6.Stable diamond measuring instrument.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] .Good quality and compact design.
.Measuring range: 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.
.Can be used in different environments.
.High precision and easy operation.
.Cost-effective, easy to operate without mistakes.
[/i2pros][i2cons] .Some people think that gem refractometers are the most important of all gem test instruments.
.Some people may find the design a bit compact. [/i2cons][/i2pc]

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5. ZHIRCEKE Digital Gem Refractometer Gemological Gemstone Refractometer Machine Gemstone Refractive Index Measuring Tool RHG181 1

ZHIRCEKE Digital Gem Refractometer Gemological Gemstone Refractometer Machine Gemstone Refractive Index Measuring Tool RHG181 1

ZHIRCEKE Digital Gem Refractometer Gemological Gemstone Refractometer Machine Gemstone Refractive Index Measuring Tool RHG181 1ZHIRCEKE Digital Gem Refractometer Gemological Gemstone Refractometer Machine Gemstone Refractive Index Measuring Tool RHG181 1ZHIRCEKE Digital Gem Refractometer Gemological Gemstone Refractometer Machine Gemstone Refractive Index Measuring Tool RHG181 1ZHIRCEKE Digital Gem Refractometer Gemological Gemstone Refractometer Machine Gemstone Refractive Index Measuring Tool RHG181 1ZHIRCEKE Digital Gem Refractometer Gemological Gemstone Refractometer Machine Gemstone Refractive Index Measuring Tool RHG181 1
Brand: ZHIRCEKE
Customer Ratings
9.0

This is a very high quality gem refractometer. It is easy to use and very accurate. It is perfect for gem testing and is a very cost effective way to measure refractive index.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] Very accurate
Lightweight and compact
Easy to use
Stable in performance [/i2pros][i2cons] Some customers have had trouble with the calibration of the instrument
Some customers have had trouble with the battery life [/i2cons][/i2pc]

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6. OBODN Built-in LED Light Source Digital Gem Refractometer for Jewelry Gemstone Ldentification Measure Refractive Index Gems Value

OBODN Built-in LED Light Source Digital Gem Refractometer for Jewelry Gemstone Ldentification Measure Refractive Index Gems Value

OBODN Built-in LED Light Source Digital Gem Refractometer for Jewelry Gemstone Ldentification Measure Refractive Index Gems ValueOBODN Built-in LED Light Source Digital Gem Refractometer for Jewelry Gemstone Ldentification Measure Refractive Index Gems ValueOBODN Built-in LED Light Source Digital Gem Refractometer for Jewelry Gemstone Ldentification Measure Refractive Index Gems ValueOBODN Built-in LED Light Source Digital Gem Refractometer for Jewelry Gemstone Ldentification Measure Refractive Index Gems ValueOBODN Built-in LED Light Source Digital Gem Refractometer for Jewelry Gemstone Ldentification Measure Refractive Index Gems Value
Brand: OBODN
Customer Ratings
8.8

The OBODN Built-in LED Light Source digital gem refractometer is the perfect tool for gemstone identification. It can measure the Refractive Index of faceted stones, and can also be used to identify whether a particular stone is Isotropic or Anistropic. By purchasing this product, you will be able to solve your problem and make your life easier.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] The OBODN Built-in LED Light Source digital gem refractometer is a powerful and affordable gemstone identification tool.
It can measure the Refractive Index of faceted stones, and can also be used to identify whether a particular stone is Isotropic or Anistropic.
This gemological refractometer is a low cost, lightweight instrument used by jewellers and traders of gemstones to measure polished stones over a refractive [/i2pros][i2cons] The OBODN Built-in LED Light Source digital gem refractometer is not perfect and can sometimes be inaccurate. [/i2cons][/i2pc]

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7. Digital Gem Refractometer for Jewelry Gemstone ldentification Measure Refractive Index Gems Value

Digital Gem Refractometer for Jewelry Gemstone ldentification Measure Refractive Index Gems Value

Digital Gem Refractometer for Jewelry Gemstone ldentification Measure Refractive Index Gems ValueDigital Gem Refractometer for Jewelry Gemstone ldentification Measure Refractive Index Gems ValueDigital Gem Refractometer for Jewelry Gemstone ldentification Measure Refractive Index Gems ValueDigital Gem Refractometer for Jewelry Gemstone ldentification Measure Refractive Index Gems ValueDigital Gem Refractometer for Jewelry Gemstone ldentification Measure Refractive Index Gems Value
Brand: HUOZUOXC, Weight: 2.20462262 Pounds, Color: Onecolor
Customer Ratings
8.5

-The gem refractometer can measure the refractive index of gems non-destructively, quickly and accurately
-The gem refractometer can determine other light characteristics of gems
-The gem refractometer is the most important tool for gem determination and the most powerful tool for identifying gem species[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] The gem refractometer can measure the refractive index of gems non- destructively, quickly and accurately
The gem refractometer can determine other light characteristics of gems
The gem refractometer is the most important tool for gem determination and the most powerful tool for identifying gem species [/i2pros][i2cons] The gem refractometer can be difficult to use
The gem refractometer can be inaccurate [/i2cons][/i2pc]

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8. ZHIRCEKE Digital Gem Refractometer, Professional Gem Instrument Gemstone ldentification Tool Built

ZHIRCEKE Digital Gem Refractometer, Professional Gem Instrument Gemstone ldentification Tool Built

ZHIRCEKE Digital Gem Refractometer, Professional Gem Instrument Gemstone ldentification Tool BuiltZHIRCEKE Digital Gem Refractometer, Professional Gem Instrument Gemstone ldentification Tool BuiltZHIRCEKE Digital Gem Refractometer, Professional Gem Instrument Gemstone ldentification Tool BuiltZHIRCEKE Digital Gem Refractometer, Professional Gem Instrument Gemstone ldentification Tool BuiltZHIRCEKE Digital Gem Refractometer, Professional Gem Instrument Gemstone ldentification Tool Built
Brand: ZHIRCEKE
Customer Ratings
8.3

The ZHIRCEKE digital gem refractometer is perfect for gemstone ldentification and identification. It features a low battery consumption for long service time, and is easy to operate. It is also lightweight and compact, so it is easy to carry around.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] The ZHIRCEKE digital gem refractometer is perfect for gemstone ldentification and identification.
It features a low battery consumption for long service time, and is easy to operate.
It is also lightweight and compact, so it is easy to carry around.
The refractometer is accurate and easy to use.
The ZHIRCEKE digital gem refractometer is a great choice for [/i2pros][i2cons] The refractometer may not be accurate for some gemstones. [/i2cons][/i2pc]

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9. Redxiao 【𝐁𝐥𝐚𝐜𝐤 𝐅𝐫𝐢𝐝𝐚𝒚 𝐋𝐨𝒘𝐞𝐬𝐭 𝐏𝐫𝐢𝐜𝐞】 Jewelry Refractometer

Redxiao 【𝐁𝐥𝐚𝐜𝐤 𝐅𝐫𝐢𝐝𝐚𝒚 𝐋𝐨𝒘𝐞𝐬𝐭 𝐏𝐫𝐢𝐜𝐞】 Jewelry Refractometer

Redxiao 【𝐁𝐥𝐚𝐜𝐤 𝐅𝐫𝐢𝐝𝐚𝒚 𝐋𝐨𝒘𝐞𝐬𝐭 𝐏𝐫𝐢𝐜𝐞】 Jewelry RefractometerRedxiao 【𝐁𝐥𝐚𝐜𝐤 𝐅𝐫𝐢𝐝𝐚𝒚 𝐋𝐨𝒘𝐞𝐬𝐭 𝐏𝐫𝐢𝐜𝐞】 Jewelry RefractometerRedxiao 【𝐁𝐥𝐚𝐜𝐤 𝐅𝐫𝐢𝐝𝐚𝒚 𝐋𝐨𝒘𝐞𝐬𝐭 𝐏𝐫𝐢𝐜𝐞】 Jewelry RefractometerRedxiao 【𝐁𝐥𝐚𝐜𝐤 𝐅𝐫𝐢𝐝𝐚𝒚 𝐋𝐨𝒘𝐞𝐬𝐭 𝐏𝐫𝐢𝐜𝐞】 Jewelry RefractometerRedxiao 【𝐁𝐥𝐚𝐜𝐤 𝐅𝐫𝐢𝐝𝐚𝒚 𝐋𝐨𝒘𝐞𝐬𝐭 𝐏𝐫𝐢𝐜𝐞】 Jewelry Refractometer
Customer Ratings
8.4

1. Redxiao is an energy-saving Jewelry Refractometer.
2. This gemstone tester is also a professional Refractometer.
3. It is easy to use and has high accuracy.
4. This gem refractometer is safe and reliable.
5. It is quick and Precise.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] This refractometer is safe and reliable.
It is easy to use and has high accuracy.
It is quick and Precise.
It is a professional Refractometer.
It is energy-saving. [/i2pros][i2cons] It is not a high-quality product.
The product is not durable.
The product is not easy to carry.
The product is not long-lasting. [/i2cons][/i2pc]

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10. Jewelry Refractometer, Portable Lightweight 1

Jewelry Refractometer, Portable Lightweight 1

Jewelry Refractometer, Portable Lightweight 1Jewelry Refractometer, Portable Lightweight 1Jewelry Refractometer, Portable Lightweight 1Jewelry Refractometer, Portable Lightweight 1Jewelry Refractometer, Portable Lightweight 1
Brand: Taidda
Customer Ratings
8.1

This refractometer is great for gem testing. It is lightweight and compact, making it easy to carry. Additionally, it features good quality materials that make it an excellent choice for those looking for accuracy and usability. Additionally, the product is reliable and used by customers who appreciate its high accuracy and easy operation.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] The refractometer is lightweight and compact, making it easy to carry.
It features good quality materials that make it an excellent choice for those looking for accuracy and usability.
The product is reliable and used by customers who appreciate its high accuracy and easy operation. [/i2pros][i2cons] The product may not be suitable for those with delicate eyesight. [/i2cons][/i2pc]

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11. Salmue Gem Refractometer,Jewelry RHG181 1

Salmue Gem Refractometer,Jewelry RHG181 1

Salmue Gem Refractometer,Jewelry RHG181 1Salmue Gem Refractometer,Jewelry RHG181 1Salmue Gem Refractometer,Jewelry RHG181 1Salmue Gem Refractometer,Jewelry RHG181 1Salmue Gem Refractometer,Jewelry RHG181 1
Brand: Salmue, Color: default
Customer Ratings
8.0

The purchase of the Salmue Gem Refractometer,Jewelry RHG181 1 will make your life easier as it will help you to quickly and accurately identify single and double gems, as well as to identify gems in the package. Additionally, it will help you to speed up the identification of gems in the package and to achieve uniform and reliable results each time.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] The Salmue Gem Refractometer,Jewelry RHG181 1 is a high quality instrument that is easy to use and provides important gemstone recognition.
The refractometer is also compact and easy to carry, making it an ideal tool for those who want to quickly and accurately identify gems and solid materials.
The instrument is highly accurate and can provide you with information on opaque gems and transparent gems.
The after- [/i2pros][i2cons] The Salmue Gem Refractometer,Jewelry RHG181 1 may not be the most important of all gem test instruments, but it does provide important information that can help you to quickly and accurately identify gems and solid materials. [/i2cons][/i2pc]

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12. Gem Refractometer,Jewelry RHG181 1.30-1.81

Gem Refractometer,Jewelry RHG181 1.30-1.81

Gem Refractometer,Jewelry RHG181 1.30-1.81Gem Refractometer,Jewelry RHG181 1.30-1.81Gem Refractometer,Jewelry RHG181 1.30-1.81Gem Refractometer,Jewelry RHG181 1.30-1.81Gem Refractometer,Jewelry RHG181 1.30-1.81
Brand: YUYTE
Customer Ratings
7.8

The refractometer is a highly accurate and easy to operate instrument that helps you recognize gems and other solid materials. The refractometer is designed to measure the angle at which light is bent or refracted through a stone, which can help you identify diamonds, moissanite and colored gems, speed up the identification of gems in the package, and remove any potential errors that may occur with gem testing methods.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] The refractometer is highly accurate and easy to operate.
Lightweight and compact, it is easy to carry.
It provides important gemstone recognition as it differs from gemstones to gemstones. [/i2pros][i2cons] The primary use of a refractometer is to measure the angle at which light is bent or refracted through a stone.
The refractometer is not recommended for use with RI liquids.
The ref [/i2cons][/i2pc]

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13. Ade Advanced Optics GL500 Gemological Gemstone Gem Refractometer Built

Ade Advanced Optics GL500 Gemological Gemstone Gem Refractometer Built

Brand: Ade Advanced Optics, Weight: 0.04375 Pounds
Customer Ratings
7.6

Ade’s GL500 gemological gemrefractometer is considered to be the most important of all gem testing instruments. Its built-in LED light source makes it easy to see the results of your examinations, while the range of measurement is exquisite.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] The GL500 gemological gemrefractometer is considered to be the most important of all gem testing instruments.
It is built-in LED light source with 3 x 1.5v batteries, making it easy to see the results of your examinations.
The range of measurement is exquisite.
The quality all metal construction makes it durable. [/i2pros][i2cons] The GL500 gemological gemrefractometer is not the most affordable of all gem testing instruments. [/i2cons][/i2pc]

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14. Gem Refractometer Jewelry 1.30-1.81, Professional Gemstone ldentification Refractometer Portable for Measuring Refractive Index

Gem Refractometer Jewelry 1.30-1.81, Professional Gemstone ldentification Refractometer Portable for Measuring Refractive Index

Gem Refractometer Jewelry 1.30-1.81, Professional Gemstone ldentification Refractometer Portable for Measuring Refractive IndexGem Refractometer Jewelry 1.30-1.81, Professional Gemstone ldentification Refractometer Portable for Measuring Refractive IndexGem Refractometer Jewelry 1.30-1.81, Professional Gemstone ldentification Refractometer Portable for Measuring Refractive IndexGem Refractometer Jewelry 1.30-1.81, Professional Gemstone ldentification Refractometer Portable for Measuring Refractive IndexGem Refractometer Jewelry 1.30-1.81, Professional Gemstone ldentification Refractometer Portable for Measuring Refractive Index
Brand: High Eagle
Customer Ratings
7.4

This gem refractometer is an excellent tool for refractive index determination. The low battery consumption and easy operation make it an easy tool to use, and the concise design makes it simple to read. The refractive index range is very wide, so it is perfect for identification of gems and solid materials.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] Quick and accurate identification of single and double gems to help identify diamonds, moissanite and colored gems, no RI liquids required
Refractive index range is 1.30-1.81 Ri
Low battery consumption
Easy operation
To measure the refractive index of gemstones and solid materials and the angle at which light is bent or refracted through a stone
Concise design
Lightweight and compact [/i2pros][i2cons] The refractive index range may be too wide for some gems
The refractive index may not be accurate for some gems [/i2cons][/i2pc]

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15. Presidium Electronic Refractive Index Meter II

Presidium Electronic Refractive Index Meter II

Presidium Electronic Refractive Index Meter IIPresidium Electronic Refractive Index Meter II
Brand: Presidium
Customer Ratings
7.1

This is aPresidium Electronic Refractive Index Meter II. It is a consistent and reliable meter that can measure the refractive index of a variety of gemstones, including diamonds, moissanites, and colored gemstones. The meter also eliminates the possibility of gemstones being analyzed incorrectly by relying solely on RI values. Additionally, the meter is helpful in distinguishing diamond, moissanite, and colored gemstones from other objects.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] The Presidium Electronic Refractive Index Meter II is a consistent and reliable meter that can measure the refractive index of a variety of gemstones, including diamonds, moissanites, and colored gemstones.
The meter also eliminates the possibility of gemstones being analyzed incorrectly by relying solely on RI values.
Additionally, the meter is helpful in distinguishing diamond, moissanite, and colored gemstones from other objects.
The meter is [/i2pros][i2cons] The Presidium Electronic Refractive Index Meter II is a consistent and reliable meter that can measure the refractive index of a variety of gemstones, including diamonds, moissanites, and colored gemstones.
The meter also eliminates the possibility of gemstones being analyzed incorrectly by relying solely on RI values.
Additionally, the meter is helpful in distinguishing diamond, moissanite, and colored gemstones from other objects, but it is not as fast as other ref [/i2cons][/i2pc]

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16. 2 Bottles/Each 3 ML Refractive Index Fluid Oil

2 Bottles/Each 3 ML Refractive Index Fluid Oil

2 Bottles/Each 3 ML Refractive Index Fluid Oil2 Bottles/Each 3 ML Refractive Index Fluid Oil2 Bottles/Each 3 ML Refractive Index Fluid Oil2 Bottles/Each 3 ML Refractive Index Fluid Oil2 Bottles/Each 3 ML Refractive Index Fluid Oil
Brand: Clina, Weight: 0.110231131 Pounds, Color: default
Customer Ratings
6.9

The GL-01 refractive index fluid can be used to reduce or eliminate glare from a gem’s surface, facilitating inspection of the gem’s interior for inclusions and other defects. By using the refractive index fluid, you can Testing all of your gemstones within the measuring range of 1.30 to 1.80 refractive index. In addition, the guarantee of after-sales service keeps you safe and satisfaction guaranteed.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] The refractive index fluid can be used to reduce or eliminate glare from a gem’s surface, facilitating inspection of the gem’s interior for inclusions and other defects.
The product allows your refractometer to measure within the measuring range of 1.30 to 1.80 refractive index.
The refractive index fluid is gemologist tool for identifying refractive index.
The product is packed and will be supplied in an glass v [/i2pros][i2cons] If there are any problems with the purchase, please feel free to contact us, we will help to fix the problem within 24 hours!
The GL-01 refractive index fluid can be expensive. [/i2cons][/i2pc]

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17. Gemological Gemstone Gem Refractometer Built

Gemological Gemstone Gem Refractometer Built

Gemological Gemstone Gem Refractometer BuiltGemological Gemstone Gem Refractometer BuiltGemological Gemstone Gem Refractometer Built
Brand: ADE Advanced Optics, Weight: 1.1904962148 Pounds
Customer Ratings
6.8

The Gemological Gem Refractometer is an incredibly important tool for gem testing. It is built with a built-in LED light source and 3 x 1.5v batteries, making it easy to use. The measurement range is 1.30 – 1.81, and the polarizing filter helps to ensure accurate readings. The hard and soft cases are included, making it easy to test gems in any condition.[i2pc show_title=”false” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros] The Gemological Gem Refractometer is an incredibly important tool for gem testing.
The measurement range is 1.30 – 1.81
The polarizing filter helps to ensure accurate readings.
The hard and soft cases are included, making it easy to test gems in any condition.
The built-in LED light source makes it easy to see the gems in the test specimen.
The Gemological Gem Ref [/i2pros][i2cons] The Gemological Gem Refractometer is not the most expensive testing instrument on the market.
The measurement range is limited. [/i2cons][/i2pc]

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Pick The Best Digital Gemstone Refractometers Based On Your Needs

How do you use a refractometer for gemstones?

To use the refractometer, open the lid, then place a small amount of R.I. fluid on the refractometer’s measuring glass using the bottle’s built-in dropper. This fluid is necessary to create “optical contact” between the glass and the gemstone.

Is the gemological refractometer out of stock?

This item is temporarily Out of Stock. A Gemological Refractometer is your primary and most powerful tool in gemstone identification. As with any typical critical angle refractometer, it will measure the Refractive Index of faceted stones, transparent to near opaque, whether loose or mounted (in many cases), up to an R. I. value of 1.81.

What does a refractometer measure?

As with any typical critical angle refractometer, it will measure the Refractive Index of faceted stones, transparent to near opaque, whether loose or mounted (in many cases), up to an R. I. value of 1.81. We are proud to feature here the respected Gem-A brand of Refractometer, which is Professional grade, as seen in the photo.

What is the best refractometer brand?

We are proud to feature here the respected Gem-A brand of Refractometer, which is Professional grade, as seen in the photo. This model is sturdily built and of the finest quality. It includes an integrated Monochromatic Filter precluding the need for a special monochromatic illuminating light.

Conclusion

The refractometers are a great way to measure the color of gems and minerals. They use a mirror to reflect light at specific angles, and then read the color difference. This allows you to measure the brightness, hue, and other features of gemstones.
If you’re looking for an accurate and easy to use Refractometer, the Gem-n-Eye Refractometer is the perfect choice. It has internal database of 200 gems, so there’s no need to convert values or cross reference to separate charts, or plug into a computer – it’s already a computer! The Gem-n-Eye also includes Diamond and its many simulants, along with Zircon and certain Garnets that are beyond the reach of traditional Refractometers. Additionally, the Gem-n-Eye is accurate to about .010 of an RI value, so you can be sure you’re getting the best possible results. And because it’s designed mainly for faceted gems, it gives you a digital readout