BE ADVISED: On Saturday, April 26 and Sunday, April 27, nearby events at Exposition Park and the University of Southern California will impact traffic, parking, and wayfinding in the area. Please consider riding the Metro E (Expo) Line and exiting at USC/Expo station.

A Rare Journey: The Jonker Diamond

Mineral Sciences Curator Aaron Celestian talks about the spectacular rare gem featured in the current NHM exhibition, 100 Carats: Icons of the Gem World.

Rectangular-shaped clear gem with purple and green swirls behind it on a black background