Cautiously Optimistic… 2020, Tucson Helps With The General Upbeat Mood

Posted on March 1, 2020 by Jon C. Phillips, GIA GG, CG (AGS)

De Beers Group announces collaboration and with RDI Diamonds, New York; will be exclusive grader of Rare and Foreverâ„¢ diamonds. Rough diamond sales were down in 2019 but the first cycle for 2020 is up…

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