The Hart Museum remains closed. Los Angeles County has approved a plan to transfer the William S. Hart Museum and Park from the County to the City of Santa Clarita.

Brilliance: The Art and Science of Rare Jewels

Celeste diamond
The Pink Starburst, 42.72ct pink diamond. Courtesy of Robert Procop 

General Info

- Past Exhibition

Gems and minerals are used in a wide variety of fields, from jewelry design to scientific research in geology, chemistry, physics, and other disciplines. Enter our Gem Vault and marvel at the brilliance of over one hundred spectacular objects—necklaces, bracelets, rings, earrings, and unmounted gems—drawn primarily from the works of master jewelry designer Robert Procop—that will be on display alongside minerals from the Museum’s collection.

The Golden Sundrop. Pear shape yellow sapphire.

Robert Procop

The Golden Sundrop. Pear shape yellow sapphire, 64.72 ct.

Jade of Muzo. Pear-shaped, cabochon-cut emerald and diamonds.

Robert Procop

Jade of Muzo. Pear-shaped, cabochon-cut emerald and diamonds, 63.70 ct.

The Pink Starburst. Pink diamond.

Robert Procop

The Pink Starburst. Pink diamond, 42.72 ct.

Ceylon Star. Sapphire and diamonds.

Robert Procop

Ceylon Star. Sapphire and diamonds, 21.01 ct.

The Blue Splendour of Ceylon. Oval blue sapphire.

Robert Procop

The Blue Splendour of Ceylon. Oval blue sapphire, 100.80 ct.

Magnificent Muzo. Pear-shaped emerald and diamonds.

Robert Procop

Magnificent Muzo. Pear-shaped emerald and diamonds, 24.45 ct.

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The Golden Sundrop. Pear shape yellow sapphire, 64.72 ct.

Robert Procop

Jade of Muzo. Pear-shaped, cabochon-cut emerald and diamonds, 63.70 ct.

Robert Procop

The Pink Starburst. Pink diamond, 42.72 ct.

Robert Procop

Ceylon Star. Sapphire and diamonds, 21.01 ct.

Robert Procop

The Blue Splendour of Ceylon. Oval blue sapphire, 100.80 ct.

Robert Procop

Magnificent Muzo. Pear-shaped emerald and diamonds, 24.45 ct.

Robert Procop

Enter the Vault to:

  • Gaze at magnificent, one-of-a-kind jewelry pieces from designer Robert Procop.
  • Find the largest green diamond in the world, one of the world’s largest pink diamonds, and a wide variety of colored fancy diamonds.
  • Discover how gems are used to make jewels.
  • Explore how scientists use these exceptional stones to learn about Earth processes, and in turn, gain a better understanding of how our planet works.

This exhibition was organized by the Natural History Museum of Los Angeles County in collaboration with Robert Procop Exceptional Jewels.