Chemical Treatment Analysis
Colour Stability – Radiation Fading.
Tests whether a gemstone’s colour is stable or susceptible to fading from light exposure or radiation, critical for stones where colour permanence affects value.
Service fee
$10 USD
Rate
per stone
What this service covers.
Certain gemstone colours are induced or enhanced by natural or artificial radiation and may fade with prolonged light exposure. The laboratory subjects specimens to controlled UV and visible light exposure to assess colour stability.
This test is particularly relevant for kunzite, certain sapphires, maxixe beryl, and irradiated topaz – species where unstable colour centres can result in significant colour loss over time.
Included in this service
✓ Controlled UV and light exposure testing
✓ Before-and-after colour comparison
✓ Stability determination: stable or unstable
Get in touch
Submit a stone for analysis.
Contact the laboratory to arrange a submission, discuss analytical requirements, or request a quotation for batch work.
Service summary
Colour Stability – Radiation Fading
Tests whether a gemstone’s colour is stable or susceptible to fading from light exposure or radiation, critical for stones where colour permanence affects value…