Vintage blue brooch in beautiful condition

Vintage brooch made with silver backing and beautiful crystals and stones that resemble moonstone or “opalesque” stones.  The pin is functional - pin works.  The pin isn’t signed but the quality is superb.  There is a very small rough spot on one of the opal-like stones that is not noticeable due to the nature of this stone.  Makes a great gift for a vintage lover and elevates your jacket or coat. This would look amazing on a cozy sweater or denim jacket, as well as on your fine wool coat or blazer.  It can also embellish a handbag.  Simple yet elegant to wear for all occasions.  Please feel free to reach out with questions. See photo for approximate size.