Estella is a pretty Latin name that's sounding more and more stylish, remembered as the ward of Miss Haversham in Dickens's Great Expectations. Though Estella ranked as high as Number 110 in the 1880s, it now sits near the bottom of the US Top 1000 along with near-twin Estelle. Either would be well worth considering as an alternative to the popular Stella.
Ali Landry used the Estela spelling for her daughter's name. Estrella is another possibility.