The Trilogy is what he will be getting the award for, but he just surpassed only 333,334 copies, but, inside the Trilogy there is three separate discs (records).
The RIAA (Recording Industry Association of America) counts each disc as a full record, so according to the guys who count these types of things, The Weeknd has sold 1,000,000 albums, which he released for free a year before released them for sale. This is a major accomplishment and is very good preparation for the new album, this time with all new material!