of shield shaped outline, the central section formed by a pave set diamond dome topped by a principal brilliant cut stone, the frames of stepped overlapping pattern with chevrons and arcs set with baguette and round cut stones, mounted in platinum, workshop mark for Henri Lavabre, French assymark, Length 3.7cm / 1 3/8'' Weight: 44g
Early 20th century emerald and diamond panel brooch, English c.1915, probably by London & Ryder, of garland style, the openwork hexagonal panel centred by a trio of oval cabochon emeralds,
Art Deco sapphire and diamond bow brooch by Mauboussin, Paris, the openwork centre of buckle design featuring an oblong cushion cut sapphire of approximately 1.25ct,
Late 19th century / early 20th century 'Noeud Louis XVI' diamond openwork ribbon bow brooch by Cartier, Paris c.1902, the loops and ribbon ends centred by alternating single stone and quatrefoil clusters,