It covers a lot of territory, and could appeal to the casual as well as the more knowledgeable diamond fancier.

| Original Score: B | May 4, 2023

The film has a colourful array of talking heads, including several who attack the cultural propaganda that gave gemstones value in the first place.

| Original Score: 4/5 | Feb 14, 2023

The film is strikingly well-constructed to build a sense of intrigue. And what it reveals about human nature is fascinating.

| Original Score: 4/5 | Feb 13, 2023

Once in a while there comes a documentary that has the potential to permanently shift the way you look at its subject. Nothing Lasts Forever is one of them.

| Original Score: 4/5 | Feb 12, 2023

Thumping thriller music, boldly shot globe-spanning locations and a precise and unrelenting polemic are just some of the draws for this propulsive documentary takedown of the diamond industry.

| Original Score: 4/5 | Feb 10, 2023

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.

| Original Score: B | Feb 10, 2023

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

| Feb 10, 2023

Without hitting us over the head, director Kohn is exploring the concept of intrinsic value. What is something worth?

| Feb 10, 2023

Amid the murk, things get philosophical: the real and the artificial blur. But the core of this sly, playful film is economic.

| Feb 9, 2023

Kohn opens up a bijou microcosm of capitalism in the age of quantum reproduction.

| Original Score: 3/5 | Feb 8, 2023

What begins as an intriguing exploration between “natural” and “synthetic” diamonds (or, more specifically, the absence of differences between them), soon descends into thriller territory.

| Original Score: 4/5 | Feb 7, 2023

It’s pretty fascinating stuff.

| Original Score: 3/4 | Nov 11, 2022

Jason Kohn’s zippy new documentary Nothing Lasts Forever is a playful and thought-provoking exposé on the multibillion-dollar industry, populated with entertaining interview subjects and an inquisitive score.

| Nov 11, 2022

One of the most eye-opening, captivating and persuasive exposés since Sour Grapes.

| Nov 10, 2022

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.

| Nov 10, 2022

Enlightens us to what we all knew: that the price of diamonds is high not because the stone is rare but because the industry tells us that your boyfriend cherishes you only when he gives you an engagement ring that he can't afford.

| Original Score: B | Nov 10, 2022

Raden's hilarious, searing takedown of the diamond myth; she calls the lack of disclosure of fakes fraud. And DeBeer's sale of Black Boxes to detect synthetic diamonds is "security theatre". This excellent doc examines the changing concept of diamonds

| Original Score: 4/4 | Nov 4, 2022

The tart-tongued talking heads, especially designer Aja Raden (“Everything could be faked”), take no prisoners.

| Original Score: 3/4 | Jun 24, 2022

A documentary that plays like a low-key thriller, this is a thorough and entertaining study of the power of marketing (and the game of expert manipulation and control of the market), and the hold it can have on consumers the world over.

| Apr 29, 2022

Demystifying and questioning the very notion of authenticity, Jason Kohns informative and oddly riveting, diamond-documentary "Nothing Lasts Forever" is ostensibly about the oft-antagonistic relationship between natural and synthetic diamonds.

| Original Score: B+ | Apr 16, 2022