These earrings are gorgeous! The turquoise and gold contrast one another beautifully against the blackened sterling silver. These earrings are approximately 2.25" long and feature champlevé enamel and keum boo. Keum Boo is an ancient Korean method in which 24 karat gold is fused to sterling silver. The champlevé process consists of cutting away troughs or cells in a metal plate and filling the depressions with pulverized vitreous enamel.