What are the common treatments and enhancements used on gemstones, such as heat treatment or oiling, and how do they impact the stone's quality and value?

What are the common treatments and enhancements used on gemstones, such as heat treatment or oiling, and how do they impact the stone's quality and value?
Admin on August 21 2025 at 05:30 PM in Gemstones
0 Answer(s)
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