If you have not done bead embroidery before, or just happen to like these earrings then this is a good pattern to start with. There are plenty of tips and photos in the 6 page pattern plus a smattering of my dubious humour.
Made with Czech candy 2-hole beads, seed beads, 3 cut seed beads, gold chain, bead foundation, ultrasuede backing, and ear posts.
The top circle is about 3/4 inch round and the bottom one is approximately 1 1/2 inches. They are about 2 1/2 inches long when finished.