gemma-antiqua: Byzantine blue glass, pearl, and gold ring, dating to the early 6th century CE. 

gemma-antiqua: Byzantine blue glass, pearl, and gold ring, dating to the early 6th century CE. 
gemma-antiqua: Byzantine blue glass, pearl, and gold ring, dating to the early 6th century CE. 

gemma-antiqua: Byzantine blue glass, pearl, and gold ring, dating to the early 6th century CE.  -- source link

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