the strap set throughout with round brilliant cut diamonds, each in a hexagonal collet and pierced around to give a honeycombe effect, spaced by three openwork oblong links with bars across, one forming the clasp, engraved detail to the gallery sides, mounted in platinum, French platinum assaymarks, unsigned, accompanied by Certificate of Authenticity from Boivin expert Francois Cailles Length 18cm / 7 1/8'' Weight: 53.5g
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,