Monochromatic Light source for Gems Refractometer. Gemstone Gemological Testing

Monochromatic Light Source for Gems Refractometer – Gemstone Testing

Enhance your gemstone testing setup with this high-quality monochromatic light source designed for use with refractometers and other gemological instruments.

589nm Monochromatic Light Source for Gem Refractometers

This is an individual narrow-bandwidth (monochromatic) light source operating at approximately 589nm, ideal for gemstone refractive index testing.

The light source is compatible with most gem refractometers on the market, including GIA-brand and generic refractometers.

Simply operate it like a flashlight by positioning the light over the refractometer’s window during testing.

Important Notes

• Listing is for the light source only

• Gem refractometer is NOT included

Power

• Operates on one (1) AA battery

• Battery included for U.S. domestic orders

• Battery not included for international shipments (due to shipping restrictions)

📦 What’s Included

• One (1) monochromatic light source

• (No additional refractometer or accessories included unless shown)

📋 Condition Details

This item is new and unused in original condition — perfect for replacing aging light sources or upgrading your gemological test bench.

🚚 Shipping & Policies

• Fast handling and secure packaging

• Buyer pays return shipping unless otherwise stated

• Ships from Oregon, United States