Vintage Colombian emerald and diamond coronet cluster ring, French, circa 1950s.
Antique ruby and diamond three stone engagement ring, circa 1905.
Van Cleef & Arpels turquoise and diamond Sultana ring, circa 1970s.
Sapphire and diamond engagement ring, circa 1920.
Art Deco Imperial precious topaz and diamond ring, circa 1930.
Fred ruby and diamond cluster ring, French, circa 1960.
Opal and diamond coronet cluster ring, circa 1950.