550-450 BCE
1.9 cm (3/4 in.)
Greenish white, very translucent nephrite
10th-13th centuryChinese
Silver, gilding, enamel
20th centuryGold
EtruscanBronze
10th-8th century BCEIranianGold
1st-3rd century CERoman
Gold alloy
2nd-1st century BCEBlue glass
4th-3rd century BCEGreekGold
7th century BCEGreekGilt copper alloy
7th-8th centuryAvarHammered gold
2nd century BCE-1st century CEParthianSilver colored metal
19th centuryIndianCopper alloy
7th-8th centuryAvar