GIA Highlights the World’s Most Iconic Diamonds on World Diamond Day
World Diamond Day 2026: GIA Reveals History and Science Behind Legendary Diamonds In honor of World Diamond Day on April 8, the Gemological Institute of America (GIA) has showcased some of the world’s most famous and fascinating diamonds it has examined over the decades. Since its founding in 1931, GIA has become the global authority in gemology, assessing over four million diamonds annually and uncovering the science, history, and rarity behind stones that have captivated
![]()
