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About Us

About Us

Clarkstown Coin & Jewelry, established in 1973, is a family owned and operated dealership in rare coins, precious metals, diamonds, and fine jewelry. Located just 20 miles north of Manhattan in Rockland County, New York, we are an easy 10 minute drive from Westchester and Bergen Counties, and just 20 minutes from Orange County, New York.

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Meet The Team


Maurice Spivak

Founded Clarkstown Coin & Jewelry in 1973. Has been helping collectors and investors buy and sell coins for over 50 years.


Seth Spivak

Owner of Clarkstown Coin and Jewelry, manages the daily operations at the store. He specializes in diamonds, fine jewelry, rare coins, and precious metals.


Peter Manana

I am a graduate of SUNY Cobleskill with a bachelor degree in Business Administration, and also a GIA Diamond Graduate from the Gemological Institute of America. In my free time I am an avid combat sports fan who enjoys studying and practicing mixed martial arts,  having obtained a competitive blue belt in  Brazilian  Jiu Jitsu. My experience with this company has been nothing short of fulfilling as everyday I am challenged to continue serving the people of Rockland. I look forward to doing so for a long time to come.


Billy McGroarty

I have just recently graduated from Clarkstown High School South. I have been working at Clarkstown coin and jewelry since August of 2021. Under the supervision of Seth, Pete, and John, I have been acquiring knowledge of coins, their values, their history, and the enjoyment of collecting them. I've learned the importance of investing in bullion, as well as presenting people with the beauty of jewelry. Since working here, I have grown to know the inquring ways of working a business. I enjoy speaking with customers, knowing their stories, and learning other informatiabout the world through them. I will be taking in these life skills and continue to learn many things as I attend Norwich University and attend the Army ROTC program.


Matt Pavia

I am currently a Sophmore at James Madison University and have been working at Clarkstown Coin & Jewelry since October of 2021. I have been frequenting the shop since 2016, when I first became interested in numismatics. Since working here, I have enjoyed learning the business aspect of coins, jewelry, and precious metals. Getting to know and interacting with the customers is also a highlight. When I’m not at school, you can catch me at a number of coin shows across the country. Going forward, I plan to further my education, and continue to gain experience, so eventually I can work full time doing what I love.


Jonathan Rose

I am a graduate of the University at Albany, with a degree in Business Economics. I began working at Clarkstown Coin & Jewelry in late 2019 and found a passion for coins and jewelry during my time here. The experiences and knowledge I've gained at Clarkstown Coin  & Jewelry have been invaluable, and I look forward to serving our customers every day. In my free time, I enjoy hiking with my family, going to the gym, and catching up on my Netflix shows.



I am currently a senior at Nanuet Senior High School and I have been working at Clarkstown Coin and Jewelry since August 2022 under the Supervision of Seth and Peter. I've learned many new things related to Gold and Silver and I look forward to learning more. I have been a baseball player my whole life so far and is looking forward to playing college ball. I enjoy many outdoor activities like hunting and fishing and I also love working out. I look forward to helping as many customers possible and to make them happy no matter what.

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