Diamond vs Sierra
Sierra leads today (#614 vs #2,017), though both are past their peak.
145 years, head to head
Babies named Diamond and Sierra per year in U.S. Social Security records, 1880–2025.
Head to head
2025 rank
#2,017
#614
Babies named in 2025
94
476
Peak year
1999
1998
Trend
Declining since 1999
Declining since 1998
Usually for
Girls
Girls
Lifetime births
33,733
100,597
Try another matchup
Diamond against names whose popularity has moved like its own.