Just don't expect it to be anything like a mainstream movie. In fact, it took me a while to settle into Uncut Gems, it seems so constantly hell bent on wrong footing the viewer. Dramatic tension is consistently undercut, there are several scenes that build a lot of tension only for the expected pay off to never come. Also, for a movie based around gems and con artists, it's decidedly unglamorous, with cramped shots that would seem more at home in a soap opera than a top level movie of this kind.
But for all this contrariness, in my eyes it works. By the second half I was fully engrossed, and ready for the films brilliant climax. The films unusual choices on almost every level work towards a unique experience which really sets it apart from most movies with a similar theme. Some won't get on with it, but I think the name "Uncut Gems" will be on people's lips for a long time to come.