Exquisite offerings in the June Bonhams Fine Jewelry Auction to be held in New York

A conch pearl and diamond necklace comprising three strands of forty-four, forty-seven and forty-nine graduated conch pearls, measuring approximately 12.4 to 3.3mm., with seed pearl and diamond rondel spacers, completed by an oval, square and old European-cut diamond clasp; estimated total diamond weight: 1.00 carat; clasp mounted in platinum; length: 18in.
Estimate: US $300,000-350,000.

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