The Gemological Institute of America (GIA) has unveiled a curated collection of red, white and blue gems and pearls to commemorate the 250th anniversary of the United States. The collection highlights the diversity of gemstones and the role of crystal structure, trace elements and craftsmanship in shaping their appearance.
“Red, white and blue are instantly recognizable, but in gems and pearls, they are far from uniform,” said Nathan Renfro, Senior Manager of Coloured Stones Identification at GIA. “This mix highlights how those colours show up across different materials, offering a fresh perspective on a familiar palette.”
The red segment includes ruby, red spinel, rhodochrosite and red beryl. Among the highlights is a carved ruby depicting Abraham Lincoln, illustrating the gemstone’s potential for sculptural artistry. Red beryl, sourced commercially only from Utah’s Ruby Violet Mine, is regarded as one of the world’s rarest gem varieties.
The white or colourless category features zircon, beryllonite, apophyllite and pearls. GIA noted that colourless zircon is prized for its brilliance and fire, while beryllonite from Maine offers a distinctly American connection. Natural pearls, formed inside mollusks through biomineralisation, demonstrate the intersection of biology and gemology.
Blue spinel, dumortierite, euclase and benitoite complete the collection. Discovered in California in 1907, benitoite was designated the state gemstone in 1985 and is known for its vivid blue colour and exceptional sparkle. Scientists have yet to fully explain the origin of its distinctive hue.
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