Early Victorian Old Mine cut diamond tulip engagement ring

Early Victorian Old Mine cut diamond tulip engagement ring in silver settings on 18kt yellow gold. Set with an estimated 1.00ct cushion shape Old Mine cut diamond in a silver tulip setting, flanked by two elongated cushion shape Old Mine cut diamonds in silver tulip settings, to an elegant graduating three stone design with cut down settings, enclosed gallery and flanked by slightly trumpeting shoulders which smooth to a solid shank. Shank has been replaced over time.