About Gemstone Publishing

Best known as the home of The Overstreet Comic Book Price Guide, Gemstone Publishing was founded by Geppi’s Family Enterprises Chairman and CEO Stephen A. Geppi as a conduit for his efforts to preserve and promote the history of the comics medium.

In addition to the Guide, which celebrated its 50th anniversary in 2020, Gemstone’s product line also includes such books as The Big, Big Overstreet Comic Book Price Guide, The Overstreet Guide To Grading Comics, Hake’s Price Guide To Character Toys, The Overstreet Price Guide To Star Wars Collectibles, The Overstreet Guide To Collecting Movie Posters, and many others.

Back issues of many of these publications, as well as a storied line of periodicals, are available on this site. All copies offered, unless otherwise noted, are previously uncirculated. 

Gemstone also publishes Scoop, a free weekly e-newsletter which looks inside the world of pop culture with a focus on auctions, toys, comics, posters, art and anything and everything pop culture! The spotlight is on fun, while also offering informative insights into the beloved playthings of the past and how they have influenced our culture.