Don't worry! Even popular names aren't truly popular these days. the year i was born the name lisa accounted for 3% of all births yet in my graduating hugh school class there were only 2 girls named Lisa. Compare and contrast that 2007's US topper Emily is 3X less popular (by percentage of population ) than 1967's Lisa. RUBY is a fab name!!! She is your Ruby and will never be confused for an other Ruby (besides people, we have last names for a reason!)

i think the name kimberley would be good