Richard T. Liddicoat

Richard T. Liddicoat was a renowned American gemologist and influential figure in the jewelry industry. He served as the director of the Gemological Institute of America (GIA) for many years, where he helped develop standardized gemstone grading systems, particularly for diamonds. His work significantly improved the consistency and reliability of gemstone valuation worldwide. Liddicoat was also an author of key texts in gemology and contributed to the advancement of gemstone education and research. His legacy is celebrated for shaping modern gemology practices, making gemstones more understandable and trustworthy for both professionals and consumers.