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Brenda's Jewelers: Your Trusted Source for Education on Diamonds ...

Brenda's Jewelers Education Center offers in-depth Guides on Diamond, Gemstone, ... The major factors that affect the amount of brilliancy in a gem are refractive index, ... resulting from using a dull or loaded grinding wheel or coated abrasive. ... Casting is a widely used Jewelry manufacturing process, in which a molten ...