Art Deco Platinum, Cabochon Emerald and Diamond Ring, Yard. Photo courtesy Doyle New York.

Centering one cushion-shaped cabochon emerald approximately 4.45 cts., flanked by 2 old-mine cut triangular-shaped diamonds approximately 2.70 cts., accented by 20 small single-cut diamonds, signed Yard Inc., circa 1920. Estimate $18,000-24,000 

Estate of Marguerite Singer Wilson 

With AGL report no. CS 56533 stating that the emerald is of Colombian origin, insignificant to minor clarity enhancement. Type: traditional oil. 

Doyle New York. Important Jewelry. Wednesday, September 25, 2013 at 10am - http://www.doylenewyork.com