Art Deco Platinum Amethyst and Diamond Flip Ring

This is an exquisite Art Deco-style platinum ring, featuring a distinctive rectangular face. The primary gemstones appear to be two trapezoidal or shield-cut amethysts, one positioned above and one below a central embellishment. These deep purple stones are likely set within a bezel or illusion setting, framed by intricate filigree or openwork platinum metalwork, characteristic of the Art Deco period (roughly 1920s-1930s). The central focus includes a small, presumably round or cushion-cut diamond set within a square or octagonal frame, adding a subtle sparkle. The platinum metal exhibits a bright, cool luster, typical of the material, and shows minimal visible wear or damage, suggesting good preservation. The craftsmanship is highly detailed, with precise geometric patterns and fine borders around the stones and filigree elements. A notable and unusual feature, as per provided context, is its transformative nature: the other side of the ring's head reportedly flips to reveal a cameo with a small diamond, indicating a versatile design. This 'flipping' mechanism suggests a well-engineered and custom piece, adding to its unique appeal and historical value. The overall condition appears excellent, with no apparent missing stones or significant structural issues from the visible side. The precise cuts of the amethysts and the elaborate metalwork demonstrate high-quality jewelry manufacturing.