Georgian old mine solitaire diamond ring. Set with a cushion shape old mine diamond in a closed back cutdown setting with an approximate weight of 3.00 carats, to an elegant solitaire design featuring a rectangular plaque with ridged details, polished edges and closed back, flanked by intricately pierced foliate form shoulders leading to a solid grooved shank. Marked 18 carat gold, silver settings, English, circa 1830.