These bold hoops measure 1-7/8" in circumference. Each earring has 20 Turquoise cabochons, graduating from 4mm to 8mm at the bottom. They are set in Sterling Silver and signed 'Spenser Sterling' on the back. The Sleeping Beauty Turquoise Mine in Globe, Arizona, closed forever in 2012, sending shock waves across the Southwest. Long a favorite with native silversmiths, it has now virtually disappeared from the market. Price: $600.