A natural freshwater pearl, diamond and gem-set brooch. Photo courtesy Bonhams.

designed as a pavé-set demantoid garnet and diamond fish, with a natural freshwater pearl head, wearing a seed pearl crown, with ruby cabochon eye; estimated total diamond weight: 2.20 carats; mounted in eighteen karat gold and platinum; length: 2in. (smaller pearls not tested for origin). Estimate US$ 10,000 - 15,000 (€7,300 - 11,000)

Accompanied by The Gem and Pearl Laboratory report #07930, dated June 11, 2013, stating the pearl is: natural, freshwater.

Bonhams. FINE JEWELLERY, New York, 17 Jun 2014 11:00 - http://www.bonhams.com/