Dictionary of Medieval Names
from European Sources

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

Italy
Latin
1514 Diamante (nom) SSPI p. 274; 1522x1532 Diamante (nom) DSF p. 56, 14
Cite as: S.L. Uckelman. "Diamond". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Diamond.