Vibrant, sassy, and bubbly, Ruby is a vintage gem that hasn't lost any of its sparkle. Currently popular in a number of English-speaking countries, Ruby is proof of the 100 Year Rule, trending again for the first time since its heyday in the 1910s.

Georgia is so rich, lush and luscious, it's almost irresistible. Georgia's now a rising star among the feminizations of George, helped by associations with the southern state (named for British King George II) and painter Georgia O'Keeffe, with the Ray Charles song "Georgia On My Mind" or maybe "Sweet Georgia Brown" playing in the background.

Tessa is one of those golden names that's been popular but not TOO popular for several decades now. Tessa has ranked in the Top 500 in the US since 1981 but has risen only once above Number 200.

Harriet has long been considered a stylish, upscale name in England, but it's still waiting to be revived in the US—though some parents seeking a solid, serious semi-classic are beginning to consider it.

A winning last-name-first Celtic choice, Flynn is still mostly used for boys, such as the son of Orlando Bloom and Miranda Kerr. Though Flynn is definitely one of the Irish surname names, from Quinn to Flannery to Makenna, that makes one of the trendy boy names for girls".

This simplified version is not nearly as popular as the original (it also destroys a perfectly good palindrome), and has been on the decline in recent years.