Their partnership combines Gemist’s customization technology with Saban Onyx’s U.S.-based manufacturing capabilities.
Bonhams Names Senior International Jewelry Director
Brett O’Connor joins the auction house from Sotheby’s Geneva.

New York—Bonhams is continuing to add to its team.
The auction house announced this week the appointment of auctioneer Brett O’Connor to senior international jewelry director and senior vice president, U.S., beginning in November at its New York office.
O’Connor boasts an illustrious career as a jewelry specialist, with more than 24 years of auction experience, the last 16 of which he spent at Sotheby’s Geneva.
While he was there he worked with the collections of Maria Callas, Gina Lollobrigida, Henckle von Donnersmarck, as well as a collection of jewelry hitting the auction block this fall that once belonged to Marie Antoinette, to name a few.
O’Connor also helped bring important diamonds and gemstones to auction, like the Beau Sancy diamond, Sunrise ruby and the Apollo and Artemis diamond earrings.
With a graduate gemologist diploma from the Gemological Institute of America, O’Connor began his career at Christie’s and Phillips in New York and Los Angeles before moving to Hong Kong and Europe during his tenure at Sotheby’s.
He’s been a lead auctioneer at Sotheby’s sales spanning Geneva, Hong Kong, London and New York, and before his move to Geneva, he was the head of jewels in Hong Kong.
Jean Ghika, Bonhams’ global head of jewelry, commented in a press release, “I am delighted to welcome Brett to the team. He has an excellent track record and is extremely well regarded within the industry. I am particularly looking forward to working with him to further build our presence in the U.S. and Asia, which are some of the most important and fastest growing markets for jewelry.”
O’Connor added, “I am pleased to be joining Bonhams at an important point in the company’s long history and excited to be returning to the U.S. with a view to expanding the jewelry department’s global presence.”
The Latest

Respondents were concerned about the Middle East conflict and how it will impact their finances.

Our Piece of the Week, the “Butterfly” necklace, showcases a 7.02-carat oval diamond set between diamond, platinum, and 18-karat gold wings.

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

Smith uses a comment he overheard in the grocery store to remind retailers that their job is to inspire buying behavior, not just sell.


“A Girl SMR at Claire’s” celebrates girlhood through the five senses with stacked jewelry, slime toys, scented accessories, and ASMR.

Believed to be one of three made in 1987, the Cartier London Crash was hot at the “Shapes of Cartier” sale at Sotheby’s Hong Kong.

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

Officials are looking for a group that robbed Marc Robinson Jewelers at an outlet mall in Round Rock, Texas, in broad daylight on April 21.

Sponsored by OROAREZZO International Jewelry Exhibition

Some retailers are taking a nuanced approach to marketing what can be a difficult holiday for many.

De Beers’ diamond production was up 17 percent in Q1, boosted by increased output at its mines in South Africa and Canada.

A signet ring belonging to the Western film star of Hollywood’s Golden Age will be up for auction at Elmwood’s next month.

Importers can submit claims now to receive money back for the IEEPA tariffs they’ve paid, with refunds expected to take up to 90 days.

The colored gemstone industry leader is heading into retirement after four years as the association’s CEO.

Susie Dewey joins the Natural Diamond Council as its new chief marketing officer.

The largest known fancy vivid blue-green diamond could fetch more than $12 million at its second auction appearance.

Emmanuel Raheb says jewelers need to start marketing early and make it easy for customers to pick a gift for mom.

In honor of the milestone, the Nebraska jeweler has debuted Leslie & Co., its new in-house jewelry brand.

The trade organization, which held its annual elections earlier this year, also added five new board members.

NRF’s annual survey found that 45 percent of consumers plan to purchase jewelry for a loved one this Mother’s Day.

The “Vault” charm, our Piece of the Week, expands on the memories that can be stored in a locket by connecting to your phone.

The open-to-the-public luxury jewelry and timepiece show, in its second year, is slated for July 23-26.

The jeweler’s Mother’s Day campaign highlights the women who work there—mothers, grandmothers, women who want to be mothers, and dog moms.

Sponsored by Jewelers Mutual

The proposed agreement follows the moissanite maker’s Chapter 11 bankruptcy protection filing last month.

The Patek Philippe for Tiffany & Co. timepiece Astor brought aboard the ill-fated ship sold for double its estimate at a Freeman’s auction.






















