A diamond, gold and enamel presentation ring

細節
A diamond, gold and enamel presentation ring
The oval enamel miniature depicting Albert Edward, Prince of Wales, within a garter of cushion-cut diamonds surmounted by a crown, the shoulders chased with roseheads, ribbon bows and foliage, the hoop carved in script 'Albert Edward', circa 1875, the reverse stamped RJ 22
probably by Garrards