Vintage lapis lazuli 925 silver drop earrings

Native American or Southwestern beaded 925 silver wire drop earrings with blue cabochons, lapis or sodalite. Date could be between 1935 and 1980, most likely 1970s. Stamped 925. Haven’t been able to see an artist mark, one may be visible if polished. Without mark, I can’t be sure these were made by a Native American artist. I haven’t polished these as many collectors prefer the patina. Please see photos for size and condition, note measuring stick is in centimeters not inches.🌸😊