Christie’s will auction a collection of jewels from the estate of Huguette M. Clark, one of the heiresses of the gilded age, on April 17 in New York City.

A 9 ct. cushion-cut fancy vivid purplish pink diamond, mounted in a Belle Époque setting by Dreicer & Co., valued at $6 million–$8 million, will highlight the auction.

Other highlights include a 19.86 ct. colorless diamond ring by Cartier, which is worth around $2 million–$3 million, and a ruby, sapphire, emerald, and gold bracelet thought to be designed by Louis Comfort Tiffany of Tiffany & Co. The jewels are expected to sell for $9 million–$12 million in total.

Prior to the auction, Christie’s International will showcase the 17-piece collection at its Hong Kong, Geneva, and London locations in the end of March.

“In the world of fine jewelry, this is truly a fairytale collection,” said Rahul Kadakia, head of jewelry for Christie’s Americas, in a statement. “Opening the vault to find this treasure trove of period jewels from the best French houses of the early 1900s has certainly been one of the most extraordinary moments of my 15-year career here at Christie’s.”

JCK