A pair of 10.18 and 9.39 carats Thailand ruby and diamond ear clips. Estimate $40,000 – $60,000. Photo Christie's Image Ltd 2015

Each set with a cushion-cut ruby, weighing approximately 10.18 and 9.39 carats, within a pear and circular-cut diamond surround, mounted in gold

With report CS 67385 dated 20 April 2015 from the American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of the ruby, weighing approximately 10.18 carats, would be classified as Thailand. Heat enhancement. Minor to Moderate clarity enhancement, Heating residues type

With report CS 67386 dated 20 April 2015 from the American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of the ruby, weighing approximately 9.39 carats, would be classified as Thailand. Heat enhancement. Minor to Moderate clarity enhancement, Heating residues type

The magnificent jewels of Margaret Adderley Kelly

Christie's. IMPORTANT JEWELS, 16 June 2015, New York, Rockefeller Plaza