the circular onxy panels centred by a diamond cluster ground, of larger round brilliant cut diamond collet to middle bordered by a geometric design pierced and millegrain set with rose cut diamonds, mounted in platinum, fittings with various indistinct marks, the connectors marked SGDG BREVETE Diameter 1.3cm / �'' Weight: 12.5g
Late 18th / early 19th century graduated golden topaz collets as a bandeau, c.1800, some of the collets earlier, formerly belonging to Gloria, the late Dowager Countess Bathurst, converted from another jewel,
Large early 20th century diamond set articulated openwork oval brooch-pendant, c.1905, possibly French, featuring a knifebar lattice with central yellow diamond, of approximately 0.65ct, in white diamond flowerhead cluster,