How to read the band →
Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Gemma
Gemma has been climbing in recent years. All-time it's been given to 34,044 U.S. babies, the 387th most common name by sound today, peaking at 2,118 in 2025, with 2,118 in 2025.
By sound, Gemma also includes the spellings Jemma.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).