A French Art Deco sapphire and diamond pendant

A French Art Deco sapphire and diamond pendant, a rectangular stepped cut sapphire, possibly synthetic, rub set to the centre, to gold frame with rose cut diamonds grain set in white gold collets, French eagle poinçoin for 18ct gold, suspended from a trace link chain with barrel clasp, marked 9ct, 4.51g
Sold for £400

Condition report:
Minor surface marks/scratches to gold.
Very minor abrasions to facet junctions of sapphire.
Surface reaching inclusions to some of the diamonds; one diamond chipped.
Chain worn.
Clasp secure.
The top of the suspension loop is worn.
The chain tests as approximately 9ct gold.
The chain is approximately 405mm long.
The pendant tests as approximately 18ct gold.
The pendant is approximately 38 x 10mm.