Ade Advanced Optics GL500 Gemstone Refractometer with LED Light – Professional Digital Gem Tester for Jewelry, Gemstone, Ruby, Jadeite, Sapphire, Diamond, Moissanite, and Lab Use
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- DURABLE ALL-METAL CONSTRUCTION – Built to last with a solid metal body, this gemstone refractometer ensures stability and long-term use for reliable results in professional gem testing and evaluation
- WIDE MEASUREMENT RANGE – Offers a refractive index range of 1.30 to 1.81, covering the values of most commonly tested gemstones. Essential for accurate identification of natural and synthetic stones
- LED ILLUMINATION WITH BATTERIES INCLUDED – Equipped with a built-in LED light source powered by 3 x 1.5V batteries (included), providing consistent lighting for clear readings in any lab or field environment
- INDUSTRY-STANDARD GEM TESTING TOOL – Regarded as one of the most essential instruments in gemology for verifying gem identity. Trusted by jewelers, gemologists, and appraisers worldwide for precise readings
- COMPLETE TESTING KIT INCLUDED – Comes with a polarizing filter for double refraction testing, as well as soft storage pouch to protect the unit and enhance portability during travel or on-site work
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Select a product to estimate shipping.What gemstones can the ADE GL500 refractometer test?
The ADE GL500 is designed for gemstone identification and analysis, supporting various transparent stones including diamond, moissanite, ruby, sapphire, jadeite, and other compatible gemstones.
What is the ADE GL500 used for?
The ADE GL500 is used to measure gemstone refractive index values, helping jewelry professionals, collectors, and laboratories evaluate and identify gemstones.
Does the ADE GL500 include an LED light source?
Yes. The built-in LED illumination provides consistent lighting to help improve visibility during gemstone inspection and measurement.
Does this refractometer require calibration before use?
Yes. Calibration is recommended before measurement to help maintain accurate readings. Follow the included instructions for proper calibration procedures.
What is included in the package?
The package includes the ADE gem refractometer, cleaning cloth and protective case. The RI Fluid is not included, and sold separately. This gem refractometer must use RI fluid to operate.
Product details

| Main Specification | |
|---|---|
| Dispositivos Compatíveis | Rifle or Shotgun or Handgun |
| Fabricante | Ade Advanced Optics |
| Número de unidades | 1 Contagem |
| Marca | Ade Advanced Optics |
| UPC | 757901788338 |
| Número de itens | 1 |
| Sport | Hunting |
| Nome do modelo | GL500 |
| Material | Aluminum Body with Optic Lens |
| Cor | preto |
| Estilo | Hunting |
| Número de identificação mundial do comércio | 00757901788338 |
| Tipo de Montagem | Integral Mount |
| Peso do Item | 19.87 g |
| Technical Details | |
| Número de parte de fabricante | GL500 |
| Tipo de Material | Aluminum Body with Optic Lens |
| Weight | 14 ounces |
| Tipo de Desporto | Hunting |
| Item details | |
| Número do modelo | GL500 |
| Others | |
| Tipo de produto | Refractometers |
| Estilo do Produto | hunting |
| Item Display Weight | 14 ounces |
| Magnification Minimum | 3 x |
| Reticle Type | Non-Illuminated |






