Auction introduction: This season’s September Important Jewels auction will include an impressive and tempting array of gemstones and jewelry, including lush colored stones and signed pieces by famous makers. Effective May 20th, 2024, Sotheby's has lowered its Buyer's Premium rates and removed Overhead Premium for all categories excluding Wine & Spirits. Sotheby's Overhead Premium will only be charged for Wine & Spirits lots. Please refer to the Conditions of Business located on the relevant sale page for the updated rates.