A ruby and diamond ring

Claw set with the rectangular cushion shaped mixed cut ruby, in a surround of circular cut diamonds, between diamond set shoulders, ring size M, gross weight 4 gms, with a Gem and Pearl Laboratory report stating the ruby to weigh 0,67 CT and to measure 6.7 x 4.1 x 2.1 mm and to be natural ruby, origin opinion Burma and that no evidence of heat treatment was observed