English Platinum Burmese Ruby and Diamond Ring

An Antique English Burmese Ruby platinum ring surrounded by two circles of diamonds. The center oval cut Burmese ruby weighs 5.26 carats.The ring features a diamond bow on each side where the shank meets the base of the ring. American Gemological Association certificate CS41856 stating that the ruby is of Burmese origin, with no indications of heating.