18 Karat White Gold, Hardstone, Enamel and Diamond Necklace-Bracelet Combination, Mauboussin, France - Sotheby's

The pendant centered by a carved jade plaque of openwork design depicting a perched bird, the necklace composed of elongated beads composed of onyx, chalcedony and coral, decorated with coral and onyx tablets as well as enamel of black and coral hues, set with old European and single-cut diamonds weighing approximately 2.85 carats, length 25½ inches, signed Mauboussin-France, indistinctly numbered, with French assay and workshop marks; a 7 inch section may be removed for wear as a bracelet; circa 1930. Estimate: 20,000 - 30,000 USD

Sotheby's. Magnificent Jewels. New York | 17 Apr 2013 -www.sothebys.com