Belle Epoque Old Mine cushion cut diamond 'toi et moi' ring

Belle Epoque Old Mine cushion cut diamond 'toi et moi' ring in platinum on 18kt yellow gold. Set with an estimated 1.38ct cushion shape Old Mine cut diamond in a platinum claw setting, diagonally set with an estimated 1.54ct cushion shape Old Mine cut diamond in a platinum claw setting, each large diamond flanked by two cushion shape Old Mine cut diamonds in platinum compass settings, accented to each shoulder with a rose cut diamond in a floating platinum bezel setting, to an elegant two stone twist design featuring intricately curving claws, pierced collets and subtle gold wirework shoulders with lightly etched decoration, smoothing to a caged shank. Hallmarked 18kt gold, French.