GIA’s services and instruments have grown in importance and impact as new gem treatments and laboratory-grown gems have entered the market.
Read More
Explore GIA’s collection of free, rare digital books and manuscripts that document the history of gems and jewellery.
Read MorePeople have coveted natural pearls as symbols of wealth and status for thousands of years.
Read More
Collectors from around the world descended on Christie's Maharajas & Mughal Magnificence auction of the jewels from the Al-Thani Collection on 19 June.
Read More
The humble leaf has captivated jewellery designers for centuries and they’ve transformed it into enduring pieces of beautiful jewellery.
Read More
Revival jewellery is inspired by the past – and wearing it connects us to the rich history of the beginning of civilisation.
Read More
John Latendresse is known as the father of American cultured pearls. He was also a great natural pearl collector and left his family a remarkable natural pearl collection. The Latendresse family is well recognised in the American pearl industry and has long supported GIA pearl research. Come with us to revisit this family and their pearl collection.
Read MoreA comparison study was made between the yellow and white nacre of the gold-lipped Pinctada maxima oyster shell and 65 yellow cultured pearls.
Read MoreChinese freshwater cultured pearls (FWCPs) are assuming a growing role at major gem and jewellery fairs, and in the market at large.
Read More
The history of Baja California has been closely tied to the exploitation of pearls since the 16th century.
Read More
