This is one of those rare pieces that totally fooled me. I was sure this was a Victorian or antique piece until I turned it over and saw the newer clasp and that it was made in Japan.
It features a large oval opal or moonstone glass white is thicker towards the center giving the thinner edges flash from the gold tone metal underneath. The twist metal frame setting is antiqued or darkened giving the piece the antique look.
Approx. measurement is 1 15/16" long by 1 1/2" wide.
Great prewoned condition however there is some specking to the metal setting underneath stone seen upon close inspection under glass edges.
Really a pretty vintage pin.