the center stone of this ring is an oval natural ruby, which measures 11.12 x 8.66 mm and weighs 5.55 ct. it is surrounded by a halo of 26 round brilliant cut diamonds, which weigh a combined total of approximately 1.62ctw and grade as ""g"" in color and ""vs2"" in clarity on a gia diamond grading scale. the stones are set in 18k white gold.