They are crafted in luxurious platinum, centered by a GIA-certified Red Ruby cushion brilliant step cut, weighing approximately 4.06 carats, with heat treatment. sided by 36 old round cut Diamonds, Prong-set, weighing in total 0.75 carats (H-I color and VS Clarity), The top of this piece measures 13 mm x 17 mm x 7 mm in height, and it is currently size 4.5 in USA ring size, sizable.