The sapphire blue stones are set in open-back settings, allowing light to pass through, giving the brooch exceptional sparkle and depth of color. One small rhinestone has been replaced with a similar stone that blends well with the originals.
This is a vintage Sarah Coventry faux opal lace filigree ring. Sarah Coventry (a popular mid-century costume jewelry company).Design: It features an openwork, Edwardian-style lace filigree band in a gold-tone finish. Center Stone: An oval faux opal (or fire opal style) cabochon showing shifting blue, white, or orange undertones depending on the light. Band Type: It features an adjustable open-back design, allowing it to fit multiple finger sizes.

