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Gemmologists who changed the game: Richard T. Liddicoat Jr.
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Richard T. Liddicoat became editor-in-chief of Gems & Gemology in 1952, a role he served for more than 50 years. | Source: GIA Alumni Collective
Richard T. Liddicoat Jr. developed the iconic 'Four Cs' system by which diamonds are graded.
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Search for Pearls - Loose Mabe
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