Victorian gold Opal ring

Very pretty Victorian Opal ring. Not hallmarked, but tested for 14K gold. The oval Opal is held with 6 prongs. There is a lovely design on the shoulders. This Opal has the colors of blue, purple and green. Ring size is 4 1/4, but could easily be re-sized. The Opal measures 6mm X 8mm. Condition is very good, with some minor internal crazing to the Opal. Weight is 1.9 grams. I would date this lovely ring at c1900.