Art Deco Imperial Topaz and Diamond Ring, circa 1935. Centring 26.73 carat oval shaped topaz accented by baguette- and round-cut diamonds weighing approximately 1.55 carats in total, mounted in platinum. (=)
1.85 Carat Art Deco Emerald and Diamond Ring, via @LangAntiques. A rare beauty! A gorgeous bight green crystal, and virtually eye-clean, old-mine Colombian emerald shines forth from this classic original Art Deco mounting, finely handcrafted in platinum, circa 1920. The gemmy emerald is framed in a stepped double row of tiny bright-white sparkling diamonds totaling one-carat, and the shoulders are adorned with graceful open work.