vanderbilt sapphire phillips geneva jewels 1234761304

Phillips’s “Geneva Jewels Auction” on Monday achieved CHF 13.7 million ($17 million) in total sales, with 96 of 113 lots sold (85% sell-through rate). Twelve lots from the Vanderbilt family sold out, contributing CHF 3.42 million ($4.25 million)—four times their low estimate. The top lot was “The Vanderbilt Sapphire,” a 42-karat sugarloaf Kashmir sapphire and diamond brooch by Tiffany & Co., which sold for CHF 2.88 million ($3.57 million), exceeding its $1–1.5 million estimate. Other highlights included a Cartier Magnificent diamond brooch ($560,582), a Bulgari “Serpenti” belt ($368,383), and multiple Cartier “Panthère” jewels. The auction drew over 1,600 visitors and bids from 44 countries.