actual: 1.8 cm (11/16 in.)
Gold
7th-6th century BCEMycenaeanGold
3rd-2nd century BCEHellenisticLeaded bronze
1st-2nd century CERomanCarnelian set in gold
RomanGold
EtruscanGold and pearl
19th-20th centuryChineseCopper alloy
7th-8th centuryAvarBronze
10th-8th century BCENear EasternBronze
9th-7th century BCEIranianGold, silver and copper alloy
14th-15th centuryPre-ColumbianCopper alloy
8th century BCEItalicMetal
19th centuryJapanese