925 silver
Diameter ball: 10mm
Length of earrings with Onyx (without hook): ca. 27mm
The name Onyx is derived from the Greek word "onyx" for "nail"; presumably this name, which has been in use for many centuries, refers to the surface of the polished stone, which is reminiscent of shiny fingernails. Spellings like onix or onyk are therefore not correct.