Diamond is a moderately popular girls' name in United States, ranking #315 in 2006 with 1,053 recorded births. The name reached its all-time peak in 1999 with 2,160 births ranking #150. Since 1996, the popularity has decreased by 37.9%. In 2006, approximately 1 in every 1,805 girls born was named Diamond. FALLING Recent data shows the name is currently falling.