A convertible cocktail Ring Designed by David Webb (1925-1975). Very rare cocktail convertible ring, created in New York City at David Webb's jewelry workshop in the 1970's. This striking bombshell ring was crafted in solid 18K yellow gold with a high polished finish. It is embellished with a quilted geometric pattern, treated with white enamel applications and is equipped with a hinged opening push system, to open and thus interchange the four optional rings, which are mounted with precious stones of different colors. Gemstones: The insert rings are mounted in a bezel setting, with 4 marquise cabochon cut (12 x 6 x 6 mm) carved from natural blue turquoise, salmon coral, blue lapis lazuli and green jade, with a combined weight of 12 carats. Weight: Combined weight of 39.95 Grams, (25.60 Dwt). Size: 6 and is sizeable.  Measurements: From the top view is 24 mm by 24 mm (0.95 x 0.95 Inches) and raise 13 mm over the finger. Hallmarks: Stamped with the maker's mark, the mark for the assay of the gold and signed, "DAVID WEBB 18KT". David Webb (1925-1975) was an American jeweler. On July 28, 1948, he founded David Webb, the company, which opened at 2 West 46th Street. Among his clients were Elizabeth Taylor, Jacqueline Kennedy Onassis and Barbara Streisand and Beyoncé have also worn his jewelry. Born in Asheville, North Carolina in 1925, Webb was a self-taught designer whose work included dragon bracelets, Maltese cross brooches and animal motifs. In 1964, The