If you're looking for a quality distributor that offers premium products and excellent customer service, then look no further than here at Black Diamond Supply Company! Not only do we offer a wide selection of products to suit your needs, but we are also small business owners who are passionate about bringing quality back to the hobby of collecting. With our superior products, competitive prices, and excellent customer service, you can trust that you'll be getting the best possible value for your money when purchasing from us!


Not all toploaders are created equal... If you're looking for a quality toploader to protect your cards, then look no further! Our crystal-clear protective plastic is specifically designed to fit cards of various sizes, sports, and brands. Our Toploaders will keep your cards looking like they came straight from the pack, regardless of how many times you handle them.

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Photograph of 130 point Magnetic Card Holder with Black Diamond Gold Foil Insert


Magnetic Card Holders are the ultimate tool for all collectors. Whether you’re a hobbyist, or an active collector looking a durable way to store your personal collection of cards; our Magnetic Card Holders are for you! Crafted and specially designed from durable plastic, strong magnetic connection; these clear Magnetic Card Holders will keep your collection stable and secure – without fear of damage, breakage, or movement. It's sure to help you preserve your precious cards for years to come.

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Card Sleeves are a simple and easy way to protect your cards from dirt, dust, scratches, or other surface materials. Our sleeves won't stick or cling to your cards, and come in a variety of sizes for Raw cards to Graded PSA Sleeves. Our slightly thicker, durable material contains a UV protection coating, so your cards will last longer than commercial sleeves do; increasing the value of your cards over time.

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  • Wholesale Orders

    Are you a Shop Owner? Breaker? Collector? All of the above?! We offer wholesale pricing for those looking to purchase supplies by the case.

  • Upcoming Card Shows

    Want to know where we will be this year? See our schedule below for upcoming shows!


    We are working on perfecting our products and will be back soon for all our customers and clients!

  • Want to Collab? Want us to Sponsor a Show?

    Want to work in collaboration with Black Diamond Supply Company? Reach out to us! Provide us with some information regarding what your looking to collaborate for, name of your company/product, and we'll get back to you on if we're interested!

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