How do treatments and enhancements affect the value and durability of sapphires and rubies, and what should buyers look for in terms of certification?

How do treatments and enhancements affect the value and durability of sapphires and rubies, and what should buyers look for in terms of certification?
Admin on July 14 2025 at 05:28 PM in Jewelry & Precious Stones - Other
0 Answer(s)
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