10 Best
Digital Gemstone Refractometers
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Product Highlights- ✔ gemological (gemstone) refractometer is your primary and most powerful tool in gemstone identification. as with a typical critical angle refractometer, it will measure the refractive index of faceted stones.
- ✔ the instrument can also be used to identify whether a particular stone is isotropic or anistropic (uniaxial or biaxial).
- ✔ refractive index is one of the most important optical parameters used to identify and authenticate polished precious and semi-precious gemstones.
- ✔ this gemological refractometer is a low cost, lightweight measuring instrument used by jewellers and traders of gemstones to measure polished stones over a refractive index range of 1.30 to 1.81 ri.
- ✔ in fact, you can also use this tool to measure r.i. for many minerals in crystal form as long as the crystals have a flat and polished face.
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Product Highlights
- Quality all metal construction, lightweight and compact, easy to carry.
- Quickly and accurately identify single and double gems. by many to be the most important of all gem testing instruments
- Designed to measure the refractive index of gemstones and solid materials.
- The refractometer is highly accurate and easy to operate.polarizing filter, hard and soft cases are included
- Strict quality and safety standard certification, long-term trouble-free use.
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Product Highlights
- High-contrast ruler with black background makes the interface clearer.
- Professional optical design and built-in narrow-wavelength quasi-single led.
- This product uses high refractive index lead glass as the test prism.
- Light source, making the shadow boundary ultra-flat straight and clear.
- Quickly and accurately measure the refractive index value of gemstones,and can determine other optical characteristics of gemstones.
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Product Highlights
- User-friendly design: refractometer gemstone with integrated light source you can use it in different environments. automatic temperature compensation (atc) that adjusts to the climate. low battery consumption for long operating times
- Specially designed: refractometer is designed to measure the refractive index of gemstones and solid materials. many people think that gem refractometers are the most important of all gem test instruments. primary use of a refractometer is to measure the angle at which light is bent or refracted through a stone.
- High precision & easy operation: refractometer is highly accurate and easy to operate. cost-effective, easy to operate without mistakes, is a stable diamond measuring instrument. primary use of a refractometer is to measure the angle at which light is bent or refracted through a stone.
- 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.
- Easy to carry: rhg-181 gem refractometer is specially used to measure the refractive index of gems and solid materials. size is about 12.8x6x3.2cm/5.04x2.36x1.26in.
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Product Highlights
- 【what you get】 1 x portable gem refractometer-1 x flashlight-1 x refractive oil-1 x box-1 x user manual
- 【design】 mini size and compact, easy to carry anywhere and anytime. clear display for easy reading
- 【function】 the gem refractometer can quickly and accurately identify a variety of single and double gemstones, helping to identify diamonds, moissanite and more
- 【widely used】 great for single and double gems, diamonds, moissanite and colored gems
- 【easy to use】 the primary use of the portable gemstone refractometer is to measure the angle at which light is bent or refracted through the stone
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Product Highlights
- -- gemological (gemstone) refractometer is your primary and most powerful tool in gemstone identification. as with a typical critical angle refractometer, it will measure the refractive index of faceted stones.
- -- professional gemstone identification gem refractometer, the instrument can also be used to identify whether a particular stone is isotropic or anistropic (uniaxial or biaxial).
- -- high accuracy jewelry diamond tester, refractive index is one of the most important optical parameters used to identify and authenticate polished precious and semi-precious gemstones.
- -- this gemological refractometer is a low cost, lightweight measuring instrument used by jewellers and traders of gemstones to measure polished stones over a refractive index range of 1.30 to 1.81 ri.
- -- gemological gemstone refractometer, in fact, you can also use this tool to measure r.i. for many minerals in crystal form as long as the crystals have a flat and polished face.
SHOWview product -
Product Highlights
- 【easy to use】 the primary use of the portable gemstone refractometer is to measure the angle at which light is bent or refracted through the stone
- 【widely used】 great for single and double gems, , moissanite and colored gems
- 【function】 the gem refractometer can quickly and accurately identify a variety of single and double gemstones, helping to identify , moissanite and more
- 【design】 mini size and compact, easy to carry anywhere and anytime. clear display for easy reading
- 【what you get】 1 x portable gem refractometer-1 x flashlight-1 x refractive oil-1 x box-1 x user manual
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Product Highlights
- ✿【high precision】our jewelry refractometer features high accuracy and easy operation. the refractometer is also one of the few instruments that can provide you with information on opaque gems and transparent gems.
- ✿【professional and portable】 our gemstone ldentification is lightweight and compact, easy to carry. low battery consumption for long service time. include: 1 * refractometer, 1 * electric torch (powered by 1 * aa battery which is not included)), 1 * english manual, 1 * 3 ml reflective index fluid.
- ✿【specially designed】our gem refractometer, specially designed for measuring the refractive index of gemstones and solid materials. approved by strict quality and safety standards for a long and trouble-free using.
- ✿【quickly and precisely】our professional refractometer identify single and double gems quickly and precisely. helps identify diamonds, moissanite and colored gems, speeds up the identification of gems in the package and results in uniform and reliable results each time, with a clearly visible display for easy reading measurements.
- ✿【100% risk free purchase】dear friend, we offer 24-hour customer service and a 12-month satisfaction guarantee for a completely risk-free purchase and your suggestion will help us to improve products and provide more great products. if you have any questions about our products, please contact us by email with no hesitate and we will do our best to solve your problem.
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Product Highlights
- Gem refractometer specially designed : jewelry refractometer, this refractometer features high accuracy and easy operation. professional refractometer identify single and double gemstones quickly and accurately. refractometer approved by strict quality and safety standards for long and trouble-free use. low battery consumption for long operating time. gem refractometer ...
- Specially designed: this refractometer measures the refractive index of gemstones and solid materials. many people think that gemstone refractometers are the most important of all gemstone testing devices. the main use of a refractometer is to measure the angle at which light is bent or refracted by a stone.
- Fast identification: identify single and double stones quickly and accurately. helps identify diamonds, moissanite and colored gemstones, speeds up identification of gemstones in packaging, yields consistent and reliable results in every measurement with a clearly visible display for easy reading measurements.
- High quality: low battery consumption and long lifespan. the gems possible are further increased by values such as r.i. color, hardness and s.g. eliminated. the transparent gemstone is tested and the surface is polished smooth, which is very suitable for separating gemstones.
- High precision, compact and easy to carry: the refractometer is very accurate and easy to use. lightweight and compact, easy to carry. it provides important gem detection as it differs from gem to gem. the refractometer is also one of the few instruments that give you information about opaque and transparent gems.
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Product Highlights
- Accurately determine other optical properties of gemstones.
- This refractometer is highly accurate and easy to operate.
- Fast and accurate identification of single biaxial gems.
- For measuring the refractive index of gemstones and solid materials.
- It can measure the refractive index of gemstones non-destructively, quickly and accurately.
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