From Jennifer Kahn: 
 
The Mezzaluna Collection
I keep seeing this shape, this circle and swoop everywhere. It’s a shape many of us are seeing (one friend sketched it for a woven purse and another had a similar design sideways on some pottery), what does it mean?? It’s similar to many designs I’ve always made, circles and crescents but there’s a FIERCENESS too it. These designs are still soft and round but sharp, they have more EDGE. They’re a little more dangerous, even weapon like.... They reminded me of a knife that looks like this. I searched online for “rocking herb knife” and came to find out that they’re called Mezzaluna knives. The word is Italian for Crescent Moon. Ahhh.

Mezzaluna Earrings - small silver hoop, hammered light brass blade
sterling earwires

Small silver hoop measures about 1 3/8" in diameter, the brass blade is 1 1/4" at its widest, and it's approximately 2 1/2" long, including the earwires.