These bold and colorful Cloisonné Enamel earrings with gold foil are hand-made by premier Cloisonnè artist Ricky Frank and feature all the colors of the rainbow. Ricky uses the ancient Cloisonnè technique in which thin strips of 24k gold are used to separate color areas. He applies fine enamel powder between the wires in thin layers, firing each individual layer at over 1400 degrees Fahrenheit. As many as 15 layers of color create the unparalleled depth and luminosity of Ricky Frank Jewelry pieces.