Augsburg Ring with sundial in the form of a hedgehog, ca. 1580.
Gold, enamel, diamonds, and glass.
Now housed at the Kunsthistorisches Museum.

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Augsburg Ring with sundial in the form of a hedgehog, ca. 1580.
Gold, enamel, diamonds, and glass.
Now housed at the Kunsthistorisches Museum.
Pair of Byzantine Bracelets; Gold, silver, pearl, amethyst, sapphire, glass, quartz, emerald plasma, 500-700 A.D., Metropolitan Museum of Art.
Emerald plasma usually refers to green chalcedony or jasper.
Hellenistic burial necklace with butterfly pendant, symbolizing the soul. Gold, amethyst, chalcedony, emerald, rock crystal, pearl, and colored glass Late 1st-2nd century BC
It was found in 1891 in a tomb near (Pontic) Olbia, an important Greek colony on the Black Sea coast of modern Ukraine (west of the Chersonese). The piece dates to the Hellenistic period, 2nd-1st century BC (i.e., ca. 200-101 BC).
A lock of Beethoven's hair mounted in a jewel-encrusted case with a glass covering, 1827.
Music Division, New York Public Library