French Early 19th Century Riviere Necklace Set With Citrines

This is a really beautiful 18ct75% pure gold (or 750 parts pure gold and 250 parts other metals) gold riviere necklace that was made in France circa 1800-1820.  It is composed of twenty well matched oval facetedA faceted stone has small, flat-cut surfaces that make a sparkling effect on transparent stones. Facets act as both mirrors and windows. Reflecting light and channelling light into a stone where it refracts and re-emerges. citrines that flow around the neck like a river of stones, hence the French term “Riviere”.  They have each been clawA precious metal prong used to hold a gemstone in place. set with fine decorative claws.  In between each citrineCitrine (from the French for ‘lemon’) is a rare, yellow type of quartz, a semi-precious stone that ranges in colour from pale yellow to orange to golden brown. The best quality citrine is found in Brazil. are flowers.  Each one is surrounded by cannetilleA type of metal decoration in the form of thin wires making a coarse filigree pattern, sometimes enhanced with a gemstone or enamelling. It is named after the type of embroidery made with very twisted gold or silver thread. The patterns are often in the form of scrolls or rosettes made of tightly coiled wire.
work composed of small florets.  At some pointA unit of weight for a diamond, being one-hundredth of a metric carat. It is used for weights that are decimal fractions of a carat, and all figures after the second decimal point are, in the diamond and jewellery trade, generally discarded. it has been lengthened with plain links but it can be shortened if wanted.