28 results found for “gem-refractometer*”

Refractive Index is one of the most important optical parameters used to identify and authenticate polished precious and semi-precious gemstones. Gem refractometer is the most important professional tool for identifying gem stones.It can test the gem refractive index easy,fast,and without spoilage,it can also determine other optical characteristics of gemstones..

Refractive Index is one of the most important optical parameters used to identify and authenticate polished precious and semi-precious gemstones. Gem refractometer is the most important professional tool for identifying gem stones.It can test the gem refractive index easy,fast,and without spoilage,it can also determine other optical characteristics of gemstones..

High hardness Synthetic CZ test prism, Scale range:1.35-1.85. Acurracy: ≦±002 . Stainless steel table,corrosion-resistant,easy to clean. Professional optical design,shadow edge is ultra-straight and clear,easy to read; and Internally installed the monochromatic light (wavelength:589.5nm) . There are two ways of inputing the voltage:2 xAAA batteries and DC3V 50mA direct current suply(AC100—240V). 2ml refractive index Liquid(1.78±005) with glass bottle

Refractive Index is one of the most important optical parameters used to identify and authenticate polished precious and semi-precious gemstones. Gem refractometer is the most important professional tool for identifying gem stones.It can test the gem refractive index easy,fast,and without spoilage,it can also determine other optical characteristics of gemstones.

Refractive Index is one of the most important optical parameters used to identify and authenticate polished precious and semi-precious gemstones. Gem refractometer is the most important professional tool for identifying gem stones.It can test the gem refractive index easy,fast,and without spoilage,it can also determine other optical characteristics of gemstones..

This digital refractometer is a supplement to the conventional refractometer. Mainly measures gemstones with a refractive index greater than 1.79 (such as diamond, CZ, Moissanite, etc.).

This set has faceted and cabochon gemstones, so can be used for both normal method and spot method practice with a refractometer. It is convenient for teaching use of refractometer and for personal interest enthusiasts to understand and learn to use refractometer to observe characteristics.

FABLE Gem Travel Lab,including the usual gem test instrument,easy to carry.There are ten instruments: Gem refractometer (including 2ML Refractive index Liquid and batteries), Portable Polariscope,Handheld Spectroscope,Calcite Dichroscope, Chelsea Filter, Ultraviolet LED Lamp, Spotlight pencil flashlight with full spectrum light source, Heart&Arrow Scope, Gem Loupe, Gem Tweezer.

Fable Protable identification travel lab,8 items jewery tool kit & Gem Testing Lab with conoscope. A professional gem testing tool kit, includes nearly all the needed gemological instruments. Including 2ML Refractive index Liquid and batteries), Portable Polariscope, Handheld Spectroscope, Chelsea Filter, Hardness pencil, Jade compact Torch, Gem Tweezer, Gem Loupe.

Fable Protable identification travel lab,8 items jewery tool kit & Gem Testing Lab with conoscope. A professional gem testing tool kit, includes nearly all the needed gemological instruments. Including 2ML Refractive index Liquid and batteries), Portable Polariscope, Handheld Spectroscope, Chelsea Filter, Hardness pencil, Jade compact Torch, Gem Tweezer, Gem Loupe.

FABLE Gem Travel Lab, including the usual gem test instrument,easy to carry. There are ten instruments: Gem refractometer (including 2ML Refractive index Liquid and batteries), Portable Polariscope, Handheld Spectroscope, Calcite Dichroscope, Chelsea Filter, Ultraviolet LED Lamp, Spotlight pencil flashlight with full spectrum light source, Heart&Arrow Scope, Gem Loupe, Gem Tweezer.

This portable toolkit includes all the high-quality instruments that the professional gemologist appraiser needs to examine and characterize gemstones with accuracy and precision.