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Addis Ababa, Lideta, 1 day ago
4 views
Uv Light Torch
Brand New
Condition
YZYOE
Brand
Light
Type
Ultraviolet (UV) light supports gemstone evaluation by revealing hidden fluorescence, treatments, and synthetic origins through atomic excitation. Key operational ranges include long-wave UV (315–400 nm) and short-wave UV (200–280 nm).
Common Gemstone Reactions Under UV Light
Rubies: Glow vibrant red under long-wave and short-wave UV due to chromium content.
Diamonds: Frequently exhibit blue fluorescence under long-wave UV, while phosphorescence helps separate natural stones from HPHT lab-grown alternatives.
Emeralds: Clear resin or oil fillers used for fracture-filling often fluoresce yellow, green, or blue, exposing clarity enhancements.
Sapphires: Heat-treated blue sapphires can display a chalky blue-to-green short-wave UV response.
ETB 20,000
NegotiableSafety tips
- Avoid paying in advance, even for delivery
- Meet with the seller at a safe public place
- Inspect the item and ensure it's exactly what you want
- Make sure that the packed item is the one you've inspected
- Only pay if you're satisfied
