Little Gems at Berkeley Farmers Market

I've been eating out a lot lately and one item I'm seeing over and over again on restaurant menus is the little gem salad. I haven't heard about this salad until this year and I thought what a clever little name to make a salad sound just so sophisticated.

Well, today at the Berkeley Farmers' Market I spotted a farmer selling little gems. They're described as an heirloom variety of romaine lettuce that don't get any bigger than their cute miniature size. They were selling for $4 for a 1 lb.-bag or $7 for a 2 lb.-bag. After I snapped this photo, I realized I should have put a peach or something small just to give perspective because this just looks like a close-up shot of romaine. But believe me, they are little.