1. Color enhancement treatment in gemstones refers to any process or treatment done to alter or improve the color of a gemstone.
Read More- A-Z Guide of Cabochon Gemstones
2. Various methods used to enhance colours are heating,, dyeing, irradiation etc.
3. Rubies are often heated to Improve their color and clarity. Heat treatment can help dissolve rutile silk Inclusions.
4. Common gemstones that goes through color enhancement are sapphires, rubies, Topaz etc.
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conclusion
