18 karat gold, enamel and diamond brooch, Jean Fouquet, 1950s

The stylized wave motif decorated with segments of blue plique-à-jour enamel accented with gold leaves, alternating with narrow bands of deep green guilloché enamel, the crest accented with small old-mine diamonds, mounted in 18 karat gold, signed Jean Fouquet, assay mark. With signed box.  Estimate 6,000—8,000 USD

Sotheby's. Important Jewels. 04 Feb 09. New York www.sothebys.com photo courtesy Sotheby's