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 | |
|---|---|
| 兼容设备 | Rifle or Shotgun or Handgun |
| 制造商 | Ade Advanced Optics |
| 单位数 | 1 计数 |
| 品牌 | Ade Advanced Optics |
| 刚果爱国者联盟 | 757901788338 |
| 项目数 | 页:1 |
| Sport | Hunting |
| 型号名称 | GL500 |
| 材料 | Aluminum Body with Optic Lens |
| 颜色 | 黑色 |
| 样式 | Hunting |
| 全球贸易识别号码 | 00757901788338 |
| 挂载类型 | Integral Mount |
| 项目重量 | 19.87 g |
| Technical Details | |
| 制造商部分编号 | GL500 |
| 材料类型 | Aluminum Body with Optic Lens |
| Weight | 14 ounces |
| 运动类型 | Hunting |
| Item details | |
| 型号 | GL500 |
| Others | |
| 产品类型 | Refractometers |
| 产品样式 | hunting |
| Item Display Weight | 14 ounces |
| Magnification Minimum | 3 x |
| Reticle Type | Non-Illuminated |






