82 lots to go under the hammer including several pieces by Bulgari.
Bonhams New York is set to auction an array of coloured gemstone jewellery and coloured diamonds next month, when an unnamed female philanthropist will sells more than 80 items of jewellery.
The Prominent Private Collection of Fine Jewelry auction will feature jewels amassed over several decades, said to "exude the confidence and glamour of its owner, a noted philanthropist and an undisputed member of the ‘jet set’".
Among the lots is an emerald and diamond bead necklace by Bulgari, which has an upper estimate of $300,000 (£200,812), while a necklace and earclip set by Sabbadini featuring the contrasting hues of emeralds and coral could fetch $35,000 (£23,428).
Susan Abeles, Bonhams head of jewellery in the US, said: "The collector of these jewels is a woman of great taste and distinguished style, who had personal relationships with a number of jewellers, including Harry Winston, Bulgari, Sabbadini and David Webb.
"She collected beautiful pieces of excellent quality to wear and enjoy. We are honoured to offer this exceptional collection."
Coloured diamonds will also feature, including a Bulgari ring set with a rectangular brilliant-cut natural fancy intense yellow diamond weighing 21.07 carats and mounted in 18ct gold. The ring has an upper estimate of $750,000 (£502,000), while a coloured diamond bracelet by Bulgari, featuring 22 rectangular-cut stones totalling 46.83cts, could sell for $300,000 (£200,812).
Highlights include the seller’s favourite items of jewellery, a gold Bulgari coin necklace, and a diamond Cartier Maillion Panthere bracelet.