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Pair of Platinum and Diamond Pendant-Earclips, The Tops by Harry Winston. Estimate 300,000 — 400,000 USD . Photo: Sotheby's.

Of cluster form, the tops centering two round diamonds weighing approximately 4.70 carats, accented by pear-shaped diamonds weighing approximately 38.50 carats, further set with marquise-shaped diamonds weighing approximately 20.50 carats, with maker's mark; pendants detachable; circa 1960. 

Property from the estate of Dolores Sherwood Bosshard

Sotheby's. Important Jewels, New York, 24 sept. 2015