GEMAX Gem Refractometer Dual – Precision and Innovation for Gemstone Analysis

Elevate your gemstone analysis with the GEMAX Gem Refractometer Dual, a cutting-edge optical tool designed for professionals and enthusiasts alike. With dual LED light sources (Yellow & White), this refractometer provides unmatched accuracy in determining the Refractive Index (RI) and Birefringence of a wide range of gemstones. Whether you're a gemologist, jeweler, or hobbyist, this dual-purpose refractometer is built to give you the most accurate readings, no matter your environment.

Key Features:

• Dual LED Light Source:

  • Yellow LED (589 nm): Sodium D-line equivalent, ensuring the most precise RI measurements.

  • White LED (6000K): Daylight-balanced light to enhance visibility, ideal for high-birefringence or synthetic gemstones.

• Measurement Scale Range: 1.35 – 1.85 RI, with ±0.002~0.003 RI accuracy for precise readings.

• Dual Scale (RI & Birefringence): Gives you both Refractive Index and Birefringence analysis with a high level of precision.

• Hard Cube Zirconia Prism: Durable, scratch-resistant, and built for longevity, ensuring reliability over time.

• Power Options: Flexible power sources with an included USB-C cable and 2x 23A 12V batteries, providing convenience for on-the-go use.

• Portable & Lightweight: Weighs just 220g and compact (130mm × 80mm × 52mm), making it ideal for both lab and field use.

• Calibration Glass Cube & Polarizing Filter Lens: Ensure the highest level of accuracy in calibration and birefringence measurement, enhancing your analysis efficiency.

Perfect for both beginners and professionals, the GEMAX Gem Refractometer Dual offers precision, portability, and user-friendly design, making it a must-have tool for any gemstone analysis.

GEMAX Gem Refractometer Dual – Frequently Asked Questions (FAQ)

1. What is the GEMAX Gem Refractometer Dual used for?

The GEMAX Gem Refractometer Dual is a precision optical instrument used to measure the Refractive Index (RI) and Birefringence of gemstones. It is an essential tool for gemologists, jewelers, and gemstone enthusiasts for accurate identification and analysis.

2. What types of gemstones can I analyze with it?

You can analyze a wide variety of natural and synthetic gemstones with RI values ranging between 1.35 and 1.85. Its dual LED lighting makes it especially suitable for stones with high birefringence and synthetic materials.

3. What’s the difference between the two LED lights?

• Yellow LED (589 nm): Simulates the sodium D-line, the industry standard for accurate RI measurements.
• White LED (6000K): Daylight-balanced to enhance visibility, especially when analyzing high-birefringence or synthetic gemstones.

4. How accurate is the refractometer?

The GEMAX Refractometer provides high-precision readings with an accuracy of ±0.002 to 0.003 RI, suitable for professional-grade analysis.

5. Is calibration necessary?

No. Each unit is factory-calibrated before shipping. However, a calibration glass cube is included so users can verify the accuracy of the device before use.

6. What power sources does it support?

• USB-C Cable (included) for continuous use.
• 2× 23A 12V Batteries (included) for portable operation.

7. What’s included in the box?

• GEMAX Gem Refractometer Dual
• Calibration Glass Cube
• Polarizing Filter Lens
• USB-C Power Cable
• 2× 23A 12V Batteries
• Instruction Manual

8. Is it suitable for beginners?

Yes. While it offers the precision professionals require, its intuitive and user-friendly design also makes it suitable for beginners and hobbyists.

9. What is birefringence, and how does this device help measure it?

Birefringence is an optical property where a material displays different refractive indices based on the direction or polarization of light. The GEMAX refractometer includes a dual scale for both RI and birefringence, and the polarizing filter lens aids in this analysis.

10. Is this a digital or analog refractometer?

The GEMAX Gem Refractometer Dual is an optical (analog) device. It uses a high-quality Zirconia prism for enhanced durability and clarity. There is no digital display.

11. How do I clean and maintain the refractometer?

• Use a soft, lint-free cloth to clean the prism.
• Avoid using abrasive cleaners or direct water.
• Store in a clean, dry, dust-free environment.
• Recheck accuracy with the calibration cube if the unit has been transported or unused for an extended period.

12. Is there a warranty?

Please check with your retailer or the official GEMAX website for warranty specifics. Most units come with a standard 1-year limited warranty covering manufacturing defects.

Specifications:

• Measurement Scale Range: 1.35 – 1.85 RI
• Accuracy: ±0.002~0.003 RI
• Light Source:
  • Dual LED System:
  • Yellow LED (589 nm): Sodium D-line equivalent (industry-standard for RI measurements)
  • White LED (6000K): Daylight-balanced for enhanced visibility with synthetic or high-birefringence stones
• Power Options:
  • USB-C powered: Cable included
  • Battery-operated: Includes 2x 23A 12V batteries
• Dimensions:
  • Refractometer size: 140mm * 90mm * 40mm (5.51in * 3.54in * 1.57in)
  • Weight: 220g (0.49 lbs)
• Power Supply: AC100—240V
• Included Accessories:
  • Calibration Glass Cube
  • Polarizing Filter Lens
  • USB-C Cable
  • 2x 23A 12V Batteries