GIA Celebrates America’s 250th Anniversary with Special Red, White and Blue Gem Showcase

The Gemological Institute of America (GIA) has introduced a specially curated collection of red, white and blue gemstones and pearls to honour the 250th anniversary of the United States. The display showcases the remarkable diversity of gems while highlighting how crystal structures, trace elements and expert craftsmanship influence their unique colours and appearances.

“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 collection demonstrates how these colours appear across a variety of materials, offering a new perspective on a familiar colour scheme.”

The red category features ruby, red spinel, rhodochrosite and red beryl. A standout piece is a carved ruby portraying Abraham Lincoln, underscoring the artistic possibilities of gemstone carving. Also included is red beryl, one of the rarest gemstones in the world, commercially mined only from Utah’s Ruby Violet Mine.

Representing the white and colourless palette are zircon, beryllonite, apophyllite and pearls. According to GIA, colourless zircon is admired for its exceptional brilliance and fire, while beryllonite sourced from Maine adds a uniquely American element to the collection. Natural pearls, formed within mollusks through biomineralisation, reflect the fascinating connection between natural biological processes and gem formation.

The blue section comprises blue spinel, dumortierite, euclase and benitoite. First discovered in California in 1907, benitoite became the state gemstone in 1985 and is celebrated for its vibrant blue colour and remarkable sparkle. Despite ongoing research, the exact cause of its distinctive blue hue remains a scientific mystery.