A Faberge jewel and gold mounted lily of the valley study will lead the sale of the late Joan Rivers' collection.
It's valued at $200,000-300,000 ahead of the June 22 auction at Christie's New York.
Only a handful of these leaf studies are known, with the present lot thought to date to around 1900.
Christie's comments: "Joan Rivers stood for legendary entertainment and eclectic tastes.
"From her coveted collection of pieces from Faberge, Harry Winston and Chanel to a Tiffany dog bowl and silk pagoda dog bed, the offerings from her collection show both sides of her personality: the exuberant energy and the refined connoisseur."
Please sign up to our free newsletter to receive exciting news about watch and jewellery auctions.