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Dictionary of Medieval Names
from European Sources

Diamond f. Latin diamas, diamant, Medieval Greek διαμάντε 'diamond'.

Italy
Latin
1514 Diamante (nom) Rossi-StudiStoria p. 274
Preview. DO NOT cite as: S.L. Uckelman. "Diamond". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 1. http://dmnes.org/2015/1/name/Diamond.