gold, diamond and abalone leaf bracelet

An 18 carat gold ribbed bracelet with a grey abalone leaf surrounded by pretty white brilliant cut diamonds, circa 1980, signed: Fred, Paris, circa 1980, with an invisible clasp under the the leaf.
weight: 27.46 gram.
wrist size: 16-16.5 cm.
width: 8 – 16 mm
dimensions: 5.5 x 5 cm