A three-stone ruby and diamond ring

A three stone ruby and diamond ring, the Burmese oval faceted ruby weighing 1.53ct with a brilliant-cut diamond set to each shoulder, total approximate diamond weight 1.00ct, claw set on white gold heart collets, hallmarked 18ct gold, London, 2005, gross weight 3.38grams, size N1/2,

No. 30567M