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Gem and Mineral Hall

The 6,000-square-foot Gem and Mineral Hall was opened in May of 1978. Another 1,500 square-foot gallery titled Gemstones and their Origins was added in May of 1985. Together they comprise one of the finest exhibits of gems and minerals in the world. In 1989, Los Angeles magazine rated it as the finest permanent museum exhibition of any kind in the Los Angeles area.

Best of the West

NHM's gem and mineral collection of about 150,000 specimens is the most significant in the country, west of the Smithsonian. See More


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Mineral Sciences Contact Information

Gem & Mineral Council
(213) 763-3326

General Inquiries
(213) 763-3328

Collections Information; Meteorites
(213) 763-3327

Fax: (213) 749-4107


Temporary Displays

There is always something new in the Gem and Mineral Hall! To better discover the world of gems, we are offering the public small, temporary exhibits. We are a premier venue for hosting world-class gems and jewelry pieces.

The Blue Moon Diamond was housed in a special, temporary exhibition in the Gem Vault from September 13, 2014 through January 6, 2015.

The 12-carat, Internally Flawless, Fancy Vivid "Blue Moon Diamond." Copyright: Cora International. Photo by Tino Hammid.


The world-famous Aurora Butterfly of Peace diamond collection was on view through January 6, 2015.

The Butterfly of Piece. Photo by R. Weldon. Copyright: GIA.


Past exhibits:

The Lady Heart Diamond Collection

The Lady Orchidea. Copyright: Sophia Fiori.


The Butterfly Brooch Collection

Spinel brooch. Copyright: Buzz & Bernardine.