~ Diadem.
Culture: Greek
Place of origin: Egypt
Date: 225–175 B.C.
Medium: Gold, glass paste, bone or pearl, garnet, carnelian and moonstone.
Source: getty.edu
~ Gemstone Ring. Date: A.D. 12th–13th century Place of origin: Constantinople Culture: Byzantine Medium: Gold, aquamarine, pearl.
Source: metmuseum.org