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
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Listing is for the light source only
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Gem refractometer is NOT included
Power
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Operates on one (1) AA battery
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Battery included for U.S. domestic orders
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Battery not included for international shipments (due to shipping restrictions)
? What’s Included
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One (1) monochromatic light source
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(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
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Fast handling and secure packaging
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Buyer pays return shipping unless otherwise stated
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Ships from Oregon, United States
4 Reviews Hide Reviews Show Reviews
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Quality
Very good quality light. Nice bright monochromatic light. The flashlight itself is well constructed unlike the junk you most often find these days. Well worth the price.
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Works great
Works exactly as described fit my GIA refractometer, for only 20 bucks can't beat this light source
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Better than expected
I'm using this light for my GIA Duplex ll Refractometer. There are several other options out there but this one has 5 bulbs and gives a very strong light, which is important to make a correct reading of the gems. I'm very happy with my purchase... a really great product for a fantastic price.
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Great accessory for Gem Tools
These make the perfect accessory for Gem tools-easy to use and very useful. The price is good and the shipping is good. This is carries around easily, so no issues taking it with me!
