How do the physical properties of a gemstone, such as hardness, refractive index, and specific gravity, affect its value and use in jewelry?

How do the physical properties of a gemstone, such as hardness, refractive index, and specific gravity, affect its value and use in jewelry?
Admin on July 20 2025 at 05:30 PM in Jewelry & Precious Stones - Other
0 Answer(s)