Recensioni di Metacritic

Kohn has created the rare documentary that transforms the way we understand the world, questioning so many of our core beliefs, including the very notion of what is “real.” Through it all, diamonds won’t lose one iota of their sparkle, but you’ll never look at them the same way again.

By turns engaging and flashy, the film probes the narratives propping up the multi-billion dollar diamond industry and posits that it’s all a house of cards. With a peppy original score, a flurry of colorful characters, and a disruptive subject matter, Nothing Lasts Forever is an invigorating study of how myths are made.

Often echoing a thriller — Logan Nelson’s nervy score doing a lot of the heavy lifting — Nothing Lasts Forever is both concise and wide-ranging.

Kohn constructs a thought-provoking film that is also an entertaining human comedy.

The film, directed by Jason Kohn (“Manda Bala” and “Love Means Zero”), turns the slogan “a diamond is forever” on its head with its title. Which is not about the durability of a diamond itself, but about the diamond market, which is being roiled by the high volume, and high quality, of synthetic diamonds.

Both in terms of the way he lays out all the information and the craft of the filmmaking itself, Kohn shows greater patience in drawing everything out. That it teeters on the edge of the grim acknowledgment that even its truths may not be enough to change our perception of this industry and the power it holds makes it all the more enthralling to behold.

A neat and efficient globe-trotting journey, full of insightful trivia and fun details, driven by impeccably selected main characters, who either go through interesting personal arcs in just 87 minutes or, like Raden, unleash a nonstop torrent of cleverness.

That marketing campaigns are built on fallacies isn’t exactly revelatory, but in pairing his excavation of the diamond myth with new inquiries into how the industry is evolving (and how it’s stagnating), Kohn strikes on something valuable.

From a filmmaking standpoint alone, "Nothing Lasts Forever" is one of the more memorable recent documentaries. But it helps that the narrative being told is so fascinating, scooping us up into this globe-trotting world where money talks and everyone — and every diamond — has a story, true or otherwise.

Kohn’s talking heads are remarkably animated and, collectively, the interviews present a provocative debate about the meaning of “valuable.”