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 ...
Synthetic gem-crystals are available since the late 1800s and their production processes were more and more refined. Later, starting in the 1950s, diamond was available via different types of ...
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