The winner, trained by Eddie Plesa Jr. and ridden by Pablo Fragoso, maintained her perfect record over the track with her third score here in as many tries.
New York City Girl finished second, two and a quarter lengths ahead of One Smart Devil to complete the $62.20 exacta, paying $3.60 to place and $2.60 to show. One Smart Devil returned $2.60 to show.
A Little Gem, a 3-year-old daughter of Yonaguska, was making her first start since January today, but had worked sharply for Plesa, who took over her training earlier this year.
Last year, A Little Gem broke her maiden here in August, and then won the Sorority Stakes a month later.