A morganite and diamond ring, Paolo Costagli
centering a pear-shaped morganite, weighing 18.05 carats, pointed off-center, completed by diamond shoulders and a plain mount; unsigned, attributed to Paolo Costagli; mounted in platinum and eighteen karat gold; size 6¼. Estimate: $7,000 - 9,000
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Bonhams. Fine Jewelry, 14 Oct 2008. San Francisco, Los Angeles and New York - www.bonhams.com
