Earrings Cobalt and Sterling Silver.
These Cobalt glass beads were hand made a long time ago, so they will be prone to being just a little bit different from each other sometimes. Cobalt glass so dark. That is because in the days that these beads were made, Cobalt had not begun being used in telephones and was easier to find. Nowadays most Cobalt glass beads are lighter. This makes these most wonderful! Cobalt is a mineral that is mined in the Congo. https://en.wikipedia.org/wiki/Cobalt.
The earrings are made with Sterling silver. Distinctive!