The Diamond Collection is the first compilation album by American rapper and singer Post Malone.

The album features guest appearances from Quavo, 21 Savage, Ty Dolla Sign, Swae Lee, Young Thug, Ozzy Osbourne, Travis Scott, Doja Cat, and the Weeknd as well as production from Malone himself, Rex Kudo, Metro Boomin, Frank Dukes, Louis Bell, Illangelo, Tank God, Carter Lang, and Andrew Watt.

The album was released to celebrate Malone becoming the artist with the most diamond-certified singles by the Recording Industry Association of America (RIAA).

[2] On July 21, 2023, the compilation was re-released as a deluxe edition with nine additional songs that were not diamond certified at the time of release but still popular, which also included songs from his previous studio album Twelve Carat Toothache (2022).

The deluxe edition of the compilation was announced on October 3, 2023, to be getting its first vinyl release for Record Store Day Black Friday 2023.