Jewelry, Timepieces & Luxury Accessories Consignment Directors

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Jill Burgum
Senior Director, Fine Jewelry, Dallas
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1-877-HERITAGE (437-4824)   Ext.1697
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Jill Burgum, Senior Director of Fine Jewelry for Heritage Auctions, brings a wealth of jewelry expertise to the company.

A graduate of University of Hawaii at Manoa, Ms. Burgum received her B.A. in Art History. After completing her degree, she attended Bowman Tech and Stewart's International, both for training in jewelry manufacturing and repair, then the Gemological Institute of America in Santa Monica, California, where she completed degrees in both Graduate Gemology and Jewelry Design in 1994.

Ms. Burgum began her working career as an on-call preview worker for Sotheby's Beverly Hills, California. She then moved to San Francisco as a jewelry cataloguer for Butterfield & Butterfield Auctions in 1996, transferring to their Los Angeles Jewelry department in 1997 as lead specialist, which she eventually left to build two jewelry web sites for start-up companies. She has also worked in retail jewelry sales and owned her own independent jewelry appraisal business.

She has been a contributor to Art + Auction, Brilliant, Eclat, Modern Jeweler, MSN Money, and Rapaport magazines.

Ms. Burgum has been a guest lecturer for the Los Angeles Natural History Museum, Gem & Mineral Council, and appeared as a specialist on HGTV, KTLA, CNN, FOX Business and ANTIQUES ROADSHOW.

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Jim Wolf
Director of Watches & Fine Timepieces
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1-877-HERITAGE (437-4824)   Ext.1659
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Jim Wolf began his horological career in 1980 as an apprentice watchmaker and cataloger for Ashland Investments. He quickly became a key executive in charge of sales and acquisitions and developed an industry leading catalog series presenting fine antique pocket watches, vintage wristwatches and estate jewelry. As a dealer and advisor to watch collectors worldwide, Jim has provided expert consultation concerning values, authenticity, and investment potential. Jim is also highly respected by collectors for his through knowledge of the historical, technical and aesthetic aspects of watches. Mr. Wolf has been a member of the National Association of Watch and Clock Collectors since 1982 and a long standing consultant to the authors of the "Complete Price Guide to Watches." Jim has written numerous articles for watch and jewelry publications including HR magazine, the NAWCC bulletin and the Market Resource Guide. He is also the co-author of "The Complete Guide to Antique Jewelry." In the late 1970's Mr. Wolf majored in classical guitar at the State University of New York and went on to a concert career as member of the Buffalo Guitar Quartet with appearances at Carnegie Hall and many major concert venues in the United States and Canada. In the 1990's, Jim played second chair cello as a volunteer with the Sarasota Pops Orchestra. Jim and his wife Julie enjoy musical and cultural events and spirited golf matches in their spare time.

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Jessica DuBroc
Assistant Director, Fine Jewelry, Dallas
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1-877-HERITAGE (437-4824)   Ext.1978
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Jessica DuBroc is a graduate of  the University of Texas at Austin (2003). Her early interest in the jewelry business stemmed from her great-grandfather being a diamond cutter and her grandfather owning a wholesale jewelry company. She has worked in wholesale, retail, consignment and auction venues for the past ten years. Jessica is a member of  the National Association of Jewelry Appraisers (NAJA). She completed her Graduate Gemologist degree through the Gemological Institute of America (GIA) in 2014.

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Michael Fossner
Consignment Director, Watches & Timepieces, NY
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1-877-HERITAGE (437-4824)   Ext.1208
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Michael Fossner is the Consignment Director for Timepieces at Heritage’s New York office. Michael is a Graduate Gemologist, an Accredited Jewelry Professional and the fifth-generation of a family in the watch industry. Growing up, Michael learned the trade in his father’s business, New York’s J & P Timepieces, while attending trade shows with his family. He eventually became the company’s website and sales manager, focusing on ecommerce sales of high-end timepieces. Michael also has degrees in International Business and Marketing from the Robert H. Smith School of Business at the University of Maryland in College Park. Following his studies, he served as an apprentice for a major watch dealer in Switzerland. Michael has appeared as an appraiser on the Antiques Roadshow and is on the Board of Trustees of the Horological Society of New York.  

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Peter Shemonsky
Director, Fine Jewelry, San Francisco
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1-877-HERITAGE (437-4824)   Ext.1135
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Mr. Shemonsky has worked within the jewelry industry throughout his professional career in retailing, design, manufacturing and the auction business. He holds a B.F.A. from the Philadelphia College of Art a Graduate Gemologist degree from the Gemological Institute of America.  

Prior to joining Heritage, he ran his own by-appointment appraisal and jewelry business in San Francisco, Ca. He is the former director for the international jewelry buying company CIRCA in San Francisco and Hong Kong. Previously he was the director of the fine jewelry and timepiece department of Bonham's auction house for North America.  

He is the course writer and instructor for the International Society of Appraisers course on Antique and Period Jewelry. In addition, he is a nationally recognized lecturer and writer on antique and period jewelry, and one of the founding board members for the American Society of Jewelry Historians West Coast chapter and has been a featured appraiser with the Antiques Roadshow for the past 16 years.

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Tracy Sherman
Director, Fine Jewelry, Palm Beach
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1-877-HERITAGE (437-4824)   Ext.1146
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Before joining Heritage, Tracy originally hailed from the Buffalo, New York area and was working toward a BA in Art History at SUNY Buffalo before she was given an opportunity to start her career in Jewelry at Sotheby’s in NYC. Over 22 years, Tracy developed her expertise in jewelry while heading various departments. As an auctioneer, she proudly auctioned the estates of Ella Fitzgerald and George Burns among others, and was an integral player for the jewelry in auctions for the Duchess of Windsor, Andy Warhol and Jackie Kennedy Onassis while at Sotheby’s.  Tracy left Sotheby’s to open her own jewelry brokerage business and do what she loves — helping clients refine their collections by adding to them or selling their unworn or unwanted pieces. Among her accomplishment, she spearheaded the sale of the estate of Marge Kelly’s jewelry collection at public auction for $8 million. In addition, she opened and ran a Palm Beach buying office for a New York firm (CIRCA) for six years.  For the past four years, Tracy has returned to run her own business in Palm Beach, assisting clients in all areas of art and antique collecting, whether through formal appraisals, buying or selling, and using her network of allied professionals and collectors to achieve the best financial outcome for her clients. Additionally, she is USPAP certified to ensure compliance with today’s insurance and IRS requirements.   

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Gina D'Onofrio
Director, Fine Jewelry, Beverly Hills
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1-877-HERITAGE (437-4824)   Ext.1153
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Gina D’Onofrio, FGA, ASA
Director of Fine Jewelry, Beverly Hills  

With work in the retail, auction and manufacturing sectors of the jewelry industry since 1989, Gina D’Onofrio’s experience encompasses jewelry design and production, appraisals, buying and selling of contemporary, antique and period jewelry, sales and management.

Prior to joining Heritage, Gina operated an independent gemological laboratory, appraisal service and consulting firm and has been catering to private individuals, banks, trusts, non-profit organizations, insurance companies, legal firms and the jewelry trade in the greater Los Angeles area.

Gina received her Master Gemologist Appraiser® designation, upon completion of appraisal studies, written and practical examinations and peer appraisal report review with the American Society of Appraisers. In addition, she was awarded the Certified Master Appraiser designation with the National Association of Jewelry Appraisers. In 2013, Gina received Los Angeles Magazine's coveted “Best in LA” award for her Jewelry Appraisal Services.

She conducts presentations and speeches about appraisal and jewelry related topics to private and corporate groups in the Los Angeles area. Gina is currently serving as Gems and Jewelry Education Chair for the American Society of Appraisers and co-instructor for their Appraisal Report Writing For Insurance Coverage course.

Professional Affiliations
• Fellow of the Gemmological Association of Great Britain (FGA)
• Fellow of The Gemological Association of Australia (FGAA)
• Certified Master Appraiser of the National Association of Jewelry Appraisers (NAJA)
• Accredited Senior Gemologist, Accredited Gemologists Association (AGA)
• Member of the National Association of Watch and Clock Collectors, (NAWCC)
• Accredited Senior Member & Master Gemologist Appraiser®, (ASA)

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Eva Violante
Director, Fine Jewelry, NY
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Eva Violante is a trained gemologist with extensive experience evaluating diamonds, estate jewelry, and timepieces. She is the Fine Jewelry Director in Heritage Auctions' growing New York office.  

Early in her career, Eva's interest in luxury and design brought her to renowned fashion houses such as Diane Von Furstenberg and Anne Fontaine where she worked in marketing and brand strategy. Since 2007, Violante worked as a jewelry and watch buyer for CIRCA, one of Madison Avenue's largest jewelry firms. Most recently, she lived and worked in Madrid, Spain as an International Buyer where she honed her skills evaluating diamonds, antique jewels and watches.  

She is a GIA certified grader of diamonds and colored stones. Fluent in Spanish, Violante also is a member of the Women's Jewelry Association and the American Society of Jewelry Historians.  

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Ana Wroblaski
Assistant Director of Fine Jewelry, Beverly Hills
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1-877-HERITAGE (437-4824)   Ext.1154
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Ana Wroblaski

Consignment Director, Beverly Hills  

Prior to joining Heritage Auctions, Ana Wroblaski has been involved in the jewelry business on various levels since 1999. Born in Chicago and raised in Los Angeles, she joined John Moran Auctioneers in Pasadena during 2011 to take charge of their growing jewelry department. Previously, Ana spent five years at Bonham’s and Butterfield’s Los Angeles, first starting as assistant to the senior specialist before she was promoted to a specialist, appraising and cataloging jewelry that ranged from antique to modern.

Once Ana got a taste of working with precious metals on her own, she served as an apprentice with a master jeweler in the Downtown Los Angeles Jewelry District. Focusing on minerals and gems, she then went on to fabricate and design jewelry for her own line and others as well. Ana is a Graduate Gemologist, earning her diploma from the Gemological Institute of America (GIA), an Accredited Jewelry Professional (AJP) and is constantly continuing her education by attending workshops and seminars to stay abreast of treatments, new mine discoveries and current style trends in the jewelry world.  

Ana has earned and stays current with the Uniform Standards of Professional Appraisal Practice (USPAP), and is currently working on the accreditation curriculum with the American Society of Appraisers (ASA).