When was "Brooch with Intaglio of an Emperor" created?

This artwork was created ca. 950–1000 (setting); 337–50 (intaglio).

What medium is "Brooch with Intaglio of an Emperor"?

Brooch with Intaglio of an Emperor is Star sapphire, pearls, gold.

Yes, Brooch with Intaglio of an Emperor is in the public domain and available for free download under CC0 license.

Unknown Artist

ca. 950–1000 (setting); 337–50 (intaglio)

Medium

Star sapphire, pearls, gold

Dimensions

Overall: Diam. 4 11/16 x 3/4 in. (Diam.11.9 x 1.9 cm)

Classification

Metalwork-Gold

Culture

Ottonian (Rhineland (?)) (setting); Byzantine (intaglio)

Department

The Cloisters

Museum

Metropolitan Museum of Art, New York, NY

Credit

The Cloisters Collection, 1988

Accession Number

1988.15