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Great Lakes Coin and Jewelry opened October 1, 2008 in Willoughby, Ohio. Our second location Great Lakes Boutique, opened October 1 2013 in Mentor, Ohio.  Both stores specialize in coins and jewelry.


We know that when dealing with sentimental possessions and investments, you want someone that you can trust. Michael Ponsart the owner is a PCGS Authorized dealer, as well as a member of A.N.A, F.U.N, P.A.N, O.S.C.S, and a number of other various organizations. We are licensed, bonded and insured. Mike has been dealing with coins for almost thirty years, learning from his grandfather at just the age of eight. 

He attends most of the national shows buying and selling coins and jewelry and has been since he was a young boy.

 A message from the owner: “After I bought and sold my first coin, I was hooked. It was always a goal of mine to open my own store, and with my grandfather’s help, it became possible. Fast forward a few years, and he now works for me at my original location. I am forever indebted to him for the love, help and support he gave me to achieve my goals.”