19th century emerald and diamond openwork scroll knot brooch, French c.1880, the central upright figure-of-eight set with cushion cut diamonds, entwined by a looping line of rectangular cut emeralds, open set in gold, French gold assaymark and partial workship mark to pin, pendant hooks to verso, approximately 3.45cts diamonds in all, approximately 6.00cts of emeralds
Pair of diamond cluster double clip brooches converting to bangle by Cartier, Paris, of scroll-ended tulip head form, presenting a lozenge outline together, each with a central random cluster of variously sized round brilliant cut diamonds, claw set, between pave diamond petal sides, the scrolling end channel set with square and baguett cut diamonds mounted in platinum and white gold fittings, signed 'Cartier Paris', serial number L7836, French assaymarks to gallery and pins, partial workshop mark D_, the white gold bangle fitting hinged at the top, unsigned, but also stamped with serial number L7836, assaymarks and workshop mark for DC (would appear to be the same maker as the pins), approximately 20cts in all, together with a Cartier case