Archaeologists digging in Jerusalem's ancient City of David just uncovered a 2,300-year-old ring that's so well preserved ...

Tiny Hellenistic-era jewel appeared beneath a building’s floor; Israel Antiquities Authority announced the discovery in a Facebook post.

Experts say that this previously overlooked gemstone ... century, red spinels were called rubies; the 170-carat Black Prince’s Ruby at the front of the Imperial State Crown, part of the British ...

The Smithsonian's National Museum of Natural History acquired one of the world's rarest gemstones.Natural red diamonds are some ... will unveil it on April 1 alongside 40 other gems from the ...