For instance, platinum jewelry in India is stamped with a Pt950 mark, which denotes 95% purity. Be sure to keep an eye out for tamper-proof quality assurance cards.
[Jerome Kelty] crafts custom jewelry from platinum. Here’s an in-depth look at his process. The first step of his Instructable post is so long you might be fooled into thinking it’s the whole ...
(PRESS RELEASE) NEW YORK, NEW YORK — Platinum Guild International USA has launched its first digital Platinum Source Book, a ...
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