Essential Jewelry

Ms. Guilbault is a Graduate Gemologist and has traveled the country evaluating important jewelry collections including antique, period and contemporary pieces. She first joined the firm in 2003, where she became the Director of Jewelry & Watches and Director of Consignments. In 2007, Katie joined Trabert & Hoeffer as an appraiser and sales associate. Following her time at Trabert & Hoeffer, Katie launched a jewelry consulting business, providing fine jewelry appraisal and custom design services. She returned to Freeman's in 2017 as a Senior Specialist of Jewelry & Watches. Katie brings a wealth of valuation experience to Southern California, as she establishes Freeman's expanded presence on the West Coast.

Ms. Thuston brings to Freeman's over 20 years’ experience in antique, period and estate jewelry having facilitated the selling process for thousands of clients. Her career includes opening the Chicago jewelry department at Heritage Auctions and directing the Chicago office of CIRCA for twelve years. Earlier in her career she sold jewelry and watches for two of Chicago’s leading jewelers, CD Peacock and Sidney Garber. She is a Graduate Gemologist from the Gemological Institute of America and has a Bachelor of Arts in music from Albion College. Ms. Thuston has received national and chapter awards for her work with the Women’s Jewelry Association and is an executive board member of the Chicago History Museum Costume Council, a candidate member of the National Association of Jewelry appraisers (NAJA), a voting member of the Accredited Gemologist Association (AGA) and member of The American Society of Jewelry Historians.