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Jewelry & Timepieces

Jill Burgum
Jill Burgum
Senior Director of Fine Jewelry
1-877-HERITAGE (437-4824)  x1697
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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.

Jim Wolf
Jim Wolf
Director of Watches & Fine Timepieces
1-877-HERITAGE (437-4824)  x1659
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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.

Michael Fossner
Michael Fossner
Consignment Director, Watches & Timepieces, NY
1-877-HERITAGE (437-4824)  x1208
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Michael Fossner is a Consignment Director for Timepieces at Heritage’s New York office. Michael is a Graduate Gemologist and an Accredited Jewelry Professional and the fifth-generation of a family in the watch business. 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 six months as an apprentice for a watch dealer in Switzerland.

Peggy Gottlieb
Peggy Gottlieb
Director of Fine Jewelry, Beverly Hills
1-877-HERITAGE (437-4824)  x1847
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Peggy Gottlieb is a well known specialist in the field of gems and jewelry. After graduating from the Gemological Institute of America with a Graduate Gemologist degree, she worked as a staff gemologist for the GIA Gem Trade Laboratory. In 1991, she started her own business with emphasis on antique and estate jewelry. In 1998, she became Vice-President, Director of Jewelry, for Sotheby’s Los Angeles, under the tutelage of John Block.  In 2002, she left Sotheby’s to begin Bluegrass Jewels, again specializing in antique and estate jewelry. After a successful career in the antique and estate jewelry business, she was asked by Heritage Auctions to be their jewelry specialist in Beverly Hills.


Ms. Gottlieb has lectured extensively on the subject of gems and jewelry. She has acted as a consultant to the Smithsonian Institution Hall of Gems and Minerals, in Washington, D.C., as well as bank trust departments, trust and estate attorneys, and private individuals. Ms. Gottlieb is qualified in the State of California to act as an expert witness, Civil and County Courts and in United States Federal Court.

Diane D'Amato
Diane D'Amato
Director, Luxury Accessories, New York
1-877-HERITAGE (437-4824)  x1901
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Diane D'Amato is the Director of Luxury Accessories at Heritage. Diane made her name in the Luxury Accessories world following high profile positions working for Hermès of Paris and Louis Vuitton, where her buying trips to Paris were influential in setting market trends in the United States and she oversaw more than $12 million in annual sales. Her specialty is in creating exclusive marketing partnerships and forging loyal client relationships. Diane is based in New York, joining the talent-rich Heritage team stewarding the brand, where she assists consignors and collectors with appraisals as well as supervising the category's double digit growth.


Diane has used her talents to do extensive charitable fund raising,  including sales that have benefited FATE (Foundation for Autism Training & Education), Crohn's and Colitis Foundation of America and St. Jude Children’s Research Hospital.

Max Brownawell
Max Brownawell
Consignment Director, Luxury Accessories, NY
1-877-HERITAGE (437-4824)  x1693
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Max Brownawell is Consignment Director and Specialist for Luxury Accessories at Heritage’s New York office. Max has years of experience in the luxury resale market. As a teenager, he bought and sold pre-owned luxury accessories under his own name, and later founded an online luxury accessories company before attending the University of Virginia. Max also gained experience in luxury goods authentication and merchandising while working at The Real Real in San Francisco and New York.

Barbara Conn
Barbara Conn
Consignment Director, Luxury Accesories, NY
1-877-HERITAGE (437-4824)  x1336
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Barbara Conn is Consignment Director for Luxury Accessories.  Her expertise in the luxury handbag market is extensive, with over a decade in the high-end accessories segment as a business owner and consultant. After a 15-year career in entertainment marketing, Barbara transitioned to the luxury goods arena. She is an expert in appraisal and authentication and her counsel is frequently sought in the field. Barbara has strong relationships with buyers, sellers and consignors from coast to coast, along with an in-depth knowledge of the Luxury marketplace.

Jessica DuBroc
Jessica DuBroc
Cataloguer/Junior Specialist
1-877-HERITAGE (437-4824)  x1978
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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 candidate for membership in 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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