Bonhams Weekly Jewelry Sale Realizes $150,515 with 88.4% Sell-Through

Bonhams concluded its Weekly: Jewelry auction, realizing a total of $150,515^[1] in a sale that closed on 21 July 2026. The auction house successfully found buyers for 114 of 129 lots, representing an 88.4% sell-through^[1] rate. The weekly format continues to serve as a consistent channel for secondary-market jewelry, presenting a mix of unmounted stones, signed designer pieces, and estate gold. Bonhams is the official result source for the sale, confirming the total and lot counts on its primary results page.

Among the notable consignments in the sale was a selection of gold and diamond jewelry, including a wristwatch from the private collection of a Los Angeles estate. The material offered in this weekly iteration ranged from high-purity gold chains and bracelets to certified loose diamonds. Gemological details provided by the house show a variety of diamond cuts and weights, including marquise, round, and square shapes, alongside GIA grading reports that verify color and clarity for the loose stones.

The top-estimated lot of the sale was a pair of gold and diamond hoop earrings, which are composed of 14K and 18K yellow gold and feature marquise, round, and square-shaped diamonds weighing approximately 7.40 carats in total. Another significant lot featured two loose diamonds accompanied by GIA reports. The first is a round brilliant cut diamond weighing 1.00 carat with an H color grade and VVS2 clarity, while the second is a round brilliant cut diamond weighing 1.03 carats graded as H color and VS1 clarity.

From the Los Angeles estate consignment, the Concord wristwatch features an 18K yellow gold case and bracelet accented by numerous round diamonds. Additionally, the 14K yellow gold and diamond necklace features tapered baguette diamonds weighing approximately 0.77 carat total alongside round diamonds weighing approximately 2 carats total. The weekly sale format provides a recurring venue for such estate jewelry and loose stones, relying on standardized gemological reports to establish condition and specifications for remote bidders.