The Four Cs of Diamonds — And the Fifth One Nobody Talks About
Diamond is the only gemstone made of a single element — carbon, at roughly 99.95% purity. Graphite is also pure carbon, but it’s soft enough…
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Understanding Precious Metals in Fine Jewelry
Precious Metals: The Foundation of Fine Jewelry Not all metals are created equal. Jewelry metals fall into two categories: base metals (copper, zinc, tin, nickel,…