In 1931, the Gemological Institute of America (GIA) was founded to establish scientific standards for gem identification, grading, and education. It developed the 4Cs (color, cut, clarity, carat) system still used today. GIA professionalized gemology, influencing jewelry markets and cultural perceptions of value, beauty, and authenticity in art and literature.

The founding of the Gemological Institute of America in 1931 supported modern literary references to gem quality and value. Poets began to explore themes of beauty and authenticity, using gemstones as metaphors for human experience and emotional depth, reflecting on the nature of worth in society.