How does the certification process for gemstones, such as diamonds and sapphires, ensure authenticity and quality, and what are the most recognized certification bodies in the industry?

How does the certification process for gemstones, such as diamonds and sapphires, ensure authenticity and quality, and what are the most recognized certification bodies in the industry?
Admin on August 03 2025 at 05:28 PM in Jewelry & Precious Stones - Other
0 Answer(s)
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