Editor’s Note
A rare pink diamond ring is poised to be the star lot at Phillips’ Geneva auction next month, with an estimated value of approximately $9 million.

A pink-diamond ring is set to fetch somewhere in the region of $9 million when it leads the upcoming jewelry sale at Phillips in Geneva.
The ring, which features a 6.95-carat, fancy-vivid-purplish-pink, VVS2-clarity, type IIa diamond between triangular diamonds, will headline the November 10 Geneva Jewels Auction: V, Phillips said last week. The sale also contains a collection from the Vanderbilt family, as well as pieces from well-known design houses including Van Cleef & Arpels, Cartier, Bulgari, and Graff.
Phillips will showcase highlights from the sale in New York, Singapore, Taipei and London before their presentation in Geneva.
This ring features a step-cut, 18.09-carat Kashmir sapphire with diamond shoulders. It has an upper estimate of CHF 2.2 million ($2.8 million).
A pair of earrings consisting of brilliant-cut, D-color, VVS1-clarity diamond studs weighing 8.28 and 8 carats will go on the block for up to CHF 680,000 ($850,000).
Phillips will offer this ring, bearing an old-cut, 10.08-carat, light-brown-pink, type IIa Golconda diamond. It’s expected to fetch up to CHF 520,000 ($650,000).
Schlumberger created this necklace in the 1950s. The piece, which includes diamonds, rubies, and sapphires, has a high price of CHF 400,000 ($500,000).
A pair of Graff earrings with octagonal step-cut, fancy-yellow diamond center stones weighing 21.38 and 20.33 carats surrounded by diamonds is estimated at up to CHF 400,000 ($500,000).
This diamond sautoir that Van Cleef & Arpels made in the 1920s has a step-cut diamond weighing 10.79 carats. The lot carries an upper price of CHF 400,000 ($500,000).
A ring with a 4.95-carat Burmese ruby and diamonds has a top estimate of CHF 320,000 ($400,000).
A convertible piece, this lot can be worn as a tiara or a necklace. Created in the second half of the 19th century, it has sapphires and diamonds, and carries a high estimate of CHF 320,000 ($400,000).
Bearing a 20.08-carat Paraiba tourmaline center stone in a diamond surround, this ring is anticipated to go for up to CHF 280,000 ($350,000).
Main image: The 6.95-carat pink diamond. (Phillips)