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Defining Quality for over a quarter Century

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Welcome to the guildmark group

The Guildmark Group is a family owned business with over a quarter century of experience in the jewelry, diamond, and watch business. The Guildmark Group family is one of the largest and most respected watch, jewelry, and diamond collectors in the country. With our large knowledge base, we happily consult numerous AGS jewelers across the U.S. on buying, selling, and auctioning, fine pieces.

Nationally known & recognized for over 30 years.

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Firm in our company values, we stand out from other industry leaders because of our precision in every step of buying & selling. The Guildmark Group is assured that you will not find another buyer with our experience, industry knowledge, or dedication to its customers.

The Guildmark Guarantee:

We create satisfied customers through our expert knowledge, while delivering the best value, service and price in the industry. Over the years, customers and partnering jewelers have appreciated dedication to quality, trusted work from The Guildmark Group. We invite you to explore our testimonials from those we’ve worked with in the past.

Our company has had a wonderful relationship with the Guildmark Group for many years. We've relied on them for expert advice regarding both selling and purchasing estate jewelry and collectibles. Our clients have benefited enormously from their professionalism and feel at ease with their honest and straightforward approach. We feel very fortunate to have developed this friendship and to make their services available to our clients. 

Tom Schmitt , Schmitt Jewelers

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The Guildmark Group works with jewelry stores all over the country to provide expert advice and valuation on watches, jewelry, coins and other collectibles. While most of our business comes from these events, we are also happy to connect with customers on an individual basis to assist them with knowledge and valuation of their fine antiquities. We are available to research one piece or an entire estate, whatever your needs may be. We look forward to serving you.

Whether you are a jeweler looking to connect or a customer with merchandise to evaluate, Guildmark Group looks forward to serving you with expert advice and the utmost client care.

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