18K Yellow Gold Vintage Mexican Fire-Opal Dolphin PendantThis exquisite vintage pendant, dating back to the 1950s, showcases a captivating Mexican opal set in an intricate 18k yellow gold design. The opal displays a mesmerizing play of color, with vibrant flashes of red, orange, green, and hints of purple, characteristic of high quality Mexican fire opals. Its pear shaped cabochon cut enhances the stones natural brilliance and fiery glow. The opal is cradled within an ornate gold setting featuring a