GIA Knowledge Sessions Webinar - recorded live on July 8, 2021.
Marine treasures such as shells, pearls, and corals have been valued by humankind since antiquity. These biogenic gems are produced by marine organisms and possess mineral compositions similar to one another. What is the earliest evidence of human use of these materials? What mollusk species commonly produce pearls? What is precious coral and what are its major sources? What other biogenic gem materials can be found in our oceans? Dive deep into the source and science of these gemstones with GIA Senior Manager of Pearl Identification Dr. Chunhui Zhou.
Read more of Dr. Chunhui Zhou's research:
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