These are gorgeous earrings!!  They are 0.75" across.  They are non-magnetic.  Also, they are no longer offered on themagiczoo.com website.  

The Magic Zoo has been around since 1989, when Merry Rosenfield first began selling her polymer clay animal jewelry in Northern California. Since that time she has expanded her line to nearly 2,000 different designs in pewter, sterling silver, bronze, enamel and 14K gold.