Vintage Emmons Opalescent Signed Adjustable Ring

Vintage Emmons adjustable gold-tone opalescent glass(?) ring in excellent condition. It appears to have been barely, if ever, worn. Stone has flashes of prismatic colors, and a lot of depth. Signed "Emmons". I haven’t tried to adjust the ring- as it is now, the measurement across the band is 3/4”, and the face of the ring also measures 3/4”x3/4”. Really cool piece! Fast shipping from a smoke and pet free home.