Sapphire is the name of the deep blue gemstone, the birthstone of September; the word reached English through Greek sappheiros and Hebrew sappir, and the name is used for the meaning "blue gemstone" or "blue jewel". It belongs to the group of jewel names, alongside Ruby, Jade and Pearl, that American parents revived in the 2010s. Sapphire entered the US top 1000 at number 913 in 2022 and ranks number 1058 in 2025.