Here are some of the most valuable Michael Jordan memorabilia, often considered the holy grails among collectors.

Same card, same grade, different grading label? It's become enough to alter the overall value on the secondary market.

LeBron James reacts to learning sky-high value of his rare rookie card, hinting he may be sitting on a hidden vault of ...

Both markets are booming, but Pokémon cards are hotter at the moment. Which will prove to be the better long-term investment?

A ticket from Michael Jordan's first home game​ with the Chicago Bulls 41 years ago sold for more than $7,600 at auction​.

A rare Logoman basketball card featuring Michael Jordan and Kobe Bryant could sell for well over $1 million at auction later ...