Welcome to Gemstone Publishing, Inc., home of The Overstreet Comic Book Price Guide and much, much more!

While The Overstreet Comic Book Price Guide is the foundation of our company, our coverage of pop-culture collectibles is much more expansive. Be sure to browse our site and see what else we have to offer. From movie and concert posters to gaming to cosplay to Star Wars and beyond, we publish books to cover all of your collectible interests, with more to come!



Overstreet @ 50

Our anniversary commemorative book Overstreet @ 50: Five Decades of the Overstreet Comic Book Price Guide is in-stock and available for order, offered in both hardcover and softcover editions. Sales have been brisk, so don't delay too long if you want to be sure to get a copy.

This companion book celebrates and documents the 50-year history of The Overstreet Comic Book Price Guide with an extensive interview with Bob Overstreet, commentaries from Paul Levitz, Maggie Thompson, Beau Smith, David T. Alexander, Buddy Saunders, Matt Nelson, Steve Borock, and others. There’s also a behind-the-scenes look at the development of the Guide, a cover gallery, the Overstreet Hall of Fame, and more.

Overstreet @ 50 clocks in at 336 pages. It features an Incredible Hulk cover by Joe Jusko and is available in hardcover ($30) and soft cover ($20) versions. The hardcover is exclusive to comic shops and to this website. 


  O@50           O@50_SC    

        Overstreet @ 50 HC               Overstreet @ 50 SC          



We are still awaiting responses from a few of you who placed your Overstreet @ 50 orders using a credit card, and have NOT already received shipping confirmation for your order.

We have sent you each at least one email notification that your card was declined due to insufficient funds or it was past its expiration date. 

We are also still awaiting response from a few people with orders for which PayPal payment was selected but never completed.


We can then cancel your open order and return the book on hold for you into inventory, making it available for other buyers.


We do not capture funds for credit card payments when the order is placed, but rather when the order is ready to ship. Due to the unavoidably long lead time this year between order placement and fulfillment, we encountered an unusually high number of card declines when we attempted to capture funds prior to shipment of Overstreet @ 50. Some were declined for insufficient funds, but many were for cards that expired during the up-to-6-month gap between order placement and order fulfillment.



We have been experiencing an increasing number of issues with orders being submitted with incorrect Zip Codes. When we go to process these orders, we get a pop-up note from the carrier (either UPS or USPS) warning that the provided Zip Code is either invalid or incorrect for the destination. We can override the notice and use the code you provide, BUT when we do, we generally get a tracking update email informing us that an address correction is needed for delivery, and we get billed by the carrier for address correction after delivery.

We ask that you PLEASE double-check every detail of the address information you provide for accuracy when placing your orders. Going forward, when these situations occur, we will be using the suggested corrections provided by the carriers instead of the info you provide in the event of a disagreement.


Important note for those placing pre-orders for upcoming publications...


In case you're wondering why your multiple-item pre-orders have been split, and are concerned about the shipping costs...

Due to a necessary programming function, pre-orders for multiple items or orders containing a combination of pre-orders and in-stock items are automatically split into separate orders for each line item. This occurs in case multiple pre-order items are received and shipping at different times. This allows each item to be filled promptly, without having to wait for other pre-ordered items to arrive. 

We make every effort to fulfil your orders in as few shipments as possible, to minimize your shipping costs. Whenever we are able to ship multiple orders together, we will combine the orders and recalculate your shipping costs accordingly.

We strongly recommend paying by credit card rather than PayPal if you are placing a pre-order. Credit card orders are not charged until they are ready for shipment, so your shipping charges will be checked and adjusted for accuracy at the time your charge is processed.

If you pay by PayPal, your account is charged immediately. This then requires that you carry a possible shipping charge overpayment until your pre-ordered items are ready to ship and the actual cost has been recalculated. We will refund any excess charges to your account once the revised and accurate shipping charge is determined, but depending on how far in advance of publication date you place your order, it could be weeks or even months before you get your refund.



Upcoming publications now available for pre-order!


Our 50th Anniversary celebration continues with the upcoming release of The Overstreet Comic Book Price Guide 1st Edition Blue 2nd Printing Facsimile Edition. Like The Overstreet Comic Book Price Guide 1st Edition Facsimile Edition published in June 2020, this special commemorative edition will be available in softcover, hardcover, and limited edition signed and numbered hardcover versions.

Now available for pre-order, with an on-sale date of February 24, 2021.

CBPG 1B Fac S/N HC       CBPG 1B Fac HC        CBPG 1B Fac SC




The 6th Edition of The Overstreet Guide to Grading Comics is now available for pre-order. And for the first time, it will also be available in a hardcover version. On sale April 7, 2021

Grading_6_HC          Grading_6_SC

Grading Guide 6 HC         Grading Guide 6 SC