Clear distinctions between natural, treated, and synthetic gemstones protect both the integrity of the jewelry industry and the confidence of clients” — Ken Bowers METAIRIE, LA, UNITED STATES, ...
LONDON, ENGLAND - OCTOBER 22: A rare ruby and diamond necklace and ruby earings from the 19th Century are displayed at Sotheby's in London. (Photo by Peter Macdiarmid/Getty Images) A teacher I had at ...
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