Vintage 14k Yellow Gold Diamond and Green Quartz Ring

A vintage scissor cut cushion shaped pale green quartz stone four claw set above a segmented pave set border of twenty diamonds above an open 14k yellow gold gallery and a tapered shank - marked 585 for 14k gold and an unidentified makers mark - total weight 6.4grms - dimensions of face 20 x 15mm - current ring size Q AU/UK (US 8)- c.1990 Europe