A GEM-SET AND DIAMOND NECKLACE Set to the front with three flower motifs, either set with a circular-cut sapphire, ruby or emerald, within a brilliant-cut diamond surround, to baton-shaped spacers, set with baguette-cut diamonds and emerald and sapphire sugarloaf cabochon terminals, to a mesh-link necklace, in 18K gold, French assay marks, length 40cm