A pair of ruby and diamond earrings, by Tiffany & Co. Photo Christie's Image Ltd 2013

Each set with a cushion-shaped ruby, weighing approximately 4.63 and 4.43 carats, to the graduated brilliant-cut diamond hoop surround and baguette-cut diamond scrolling tops, 3.9 cm. Signed Tiffany & Co. Estimate:  $105,592 – $155,609

Accompanied by report no. GRS2013-014441 and GRS2013-014442 dated 25 January 2013 from the GRS GemResearch Swisslab stating that both rubies are of Siam (Thailand) origin, with no indications of heating 

Christie's. MAGNIFICENT JEWELS. 12 November 2013. Geneva