Diamond is a distinctive girls' name in United States, ranking #1014 in 2015 with 264 recorded births. The name reached its all-time peak in 1999 with 2,160 births ranking #150. Since 1996, the popularity has decreased by 84.4%. In 2015, approximately 1 in every 6,760 girls born was named Diamond. FALLING Recent data shows the name is currently falling.