“Light performance” gets a lot of loose use in the diamond trade, but what does it mean when someone is actually looking at a diamond?

Don’t judge a yellow gem by its color alone. A variety of gemstones also come in shades of yellow, from diamonds to citrine to garnets.

Russell Shor reflects on the people, gems and stories he’s encountered as he’s covered the industry over the years.

Economic impact of the coronavirus. Plus, an update on the diamond market and gold jewelry.

GIA scientists recently presented their latest research on diamond tagging and the cause of gray-blue-violet color in diamonds.

Dr. James Shigley shares how GIA determines colored stone origin and the mysteries of diamonds origin.

Patrick O’Shea’s life’s journey has led him down many career paths until they all came together as a designer who specializes in masonic jewelry.

World’s two largest diamond producers say market is stabilizing after severe cutbacks in rough sales.

Check out some of the most interesting and unusual diamonds and colored stones submitted to GIA’s laboratories in 2019.

GIA researchers analyzed more than 90,000 natural pink diamonds to better understand how these rare and beautiful diamonds formed and got their color.

U.S. consumer confidence has kept the economy from sliding into a possible recession.

State department tells industry it is not doing a good job tightening chain of custody reporting.