The Gem-A Portable Refractometer is a high-precision gemstone testing tool designed for professional gemologists, jewelers, and appraisers. This advanced refractometer measures the refractive index (RI) of faceted gemstones, cabochons, carvings, and crystal faces with exceptional accuracy, making it an essential instrument for gemstone identification.

Equipped with an in-built monochromatic filter, this refractometer provides precise and reliable RI readings, distinguishing between optically isotropic and anisotropic gemstones. It features a removable polarizing lens, a pull-out eyepiece, and a wide prism glass, enhancing usability and precision. The stainless steel faceplate ensures durability, while the lightweight and compact design allows for easy portability.

This professional-grade refractometer includes 1.78 RI Liquid and a smart travel case, making it convenient for both laboratory and on-the-go gem testing. Whether testing loose gemstones or those set in jewelry, this tool delivers quick and accurate results.

Key Benefits:

✔ High-Precision Measurements – Measures refractive indices from 1.30 to 1.81 RI with ±0.003 accuracy
✔ Built-in Monochromatic Filter – Ensures sharp and clear RI readings for gemstone identification
✔ Portable & Lightweight – Compact and travel-friendly design with a protective case
✔ Easy-to-Use Design – Features a pull-out eyepiece, removable polarizing lens, and clear scale markings
✔ Durable Construction – Equipped with a stainless steel faceplate and wide prism glass for long-term use
✔ Versatile Testing – Ideal for faceted gemstones, cabochons, carvings, and gemstones set in jewelry

⚠️ Please Note: The following accessories are required but not included:
🔹 External Light Source (SKU TL52)
🔹 Refractometer Fluid (SKU TZR61)