Ruby was a top-25 name in 1900, top-100 through 1940, and then fell completely out of the top 300 between 1968 and 1999. The current rank of 63 represents one of the most decisive comebacks among gemstone names. Ruby's 31-year hiatus is roughly the same length as Scarlett's — and both came back at almost exactly the same time, which suggests the comebacks share a cause.
The Latin root and the gemstone naming wave
Ruby derives from the Latin rubeus, meaning "red," via the Old French rubi. The first-name use traces to the late 19th century, when American parents adopted Ruby alongside other gemstone names (Pearl, Opal, Beryl, Garnet) during a brief but intense gem-naming fashion that peaked between 1890 and 1920. Most of those names did not survive their initial wave; Ruby and Pearl are the two that have.
The 1924 peak came at the tail end of the gemstone trend. By 1940, Pearl had already begun its decline; Ruby followed about a decade later. The two names spent the 1950s through 1990s as period markers, names that signaled a specific Edwardian-Jazz Age era rather than current taste.
The Ruby revival's actual catalyst
Most accounts of Ruby's comeback credit specific celebrities (Tobey Maguire's daughter Ruby in 2006, the 2002 song "Ruby" by Kaiser Chiefs in the UK), but the chart trajectory shows Ruby was already climbing steadily from 1999 onward, before any of those events. The more accurate explanation is the broader vintage-revival wave that lifted Violet, Hazel, and Ivy through the same period.
Ruby fits cleanly into the strong-vintage cluster: short, definite consonant work, gemstone register, and a slightly tomboyish edge that distinguishes it from the soft-Latinate names dominating the same era. Jack White's 2009 daughter Scarlet Teresa White and similar high-profile vintage choices reinforced the cluster's cultural visibility.
The plateau and the saturation question
The counter-reading: Ruby's growth has flattened in the past five years, holding around #65-70 rather than climbing into the top 50. The vintage-strong cluster as a whole is showing the same pattern, with parents looking for distinctive vintage gradually moving toward less-used picks. Ruby's appeal is unlikely to fade. The name is too recognizable and too well-anchored in Latin etymology, though it is unlikely to climb significantly higher.
Sibling pairings on naming forums lean directly into the cluster: Ruby and Violet, Ruby and Pearl, Ruby and Hazel, Ruby and Scarlett. Middle names tend short and clean: Ruby Rose, Ruby Mae, Ruby Grace, Ruby Jane. The two-syllable first leaves room for either short or longer middles, but parents tend to favor the shorter route.