Signed Miracle on the back, the focal point of this vintage pin is the gorgeous centered stone which appears as an amethyst colored agate. The geometric outer design, the open work diamond shapes, and the Marcasite like structure of the border, are less typical of the usual Celtic designs by Miracle and more of a Deco style. The art glass stone is set within an open worked antiqued gold tone metal setting. The rollover clasp is tight. With little sign of use or wear the brooch measures 1 5/8".