Sterling Silver Round Earrings with Blue Stone Vintage Unusual Boho Jewelry

Sterling silver round earrings with a blue cone shaped polished stone. The blue stone comes out both sides of the circle - they're reminiscent of a wheel or shield. Very unique! I don't know what type of stone the blue gems are - they may be glass. Stamped 925. Excellent condition. They measure 1/2" in both diameter and width