Geologist Debapriya Rakshit and experienced miner Richard Kapeta uncovered the impressive 5,655-carat emerald inside the largest open-pit mine in Kagem, which is partially owned by Gemfields — a ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Alizarin, a natural dye derived from ...

STATESVILLE, N.C. — Rock hound Jamie Hill knew he had found an impressive batch of emeralds in November 1998 while digging near his Alexander County home. Now gem experts are calling one of his ...

BOSTON(CBS) -- Bridges along the Emerald Necklace Conservancy in Boston will be lit up emerald green every night for the next month. The battery-powered LED lights will turn on around dusk and stay on ...