Gizmodo: Beyond the Hype of Lab-Grown Diamonds

By Maddie Stone Billions of years ago when the world was still young, treasure began forming deep underground. As the edges of Earth’s tectonic plates plunged down into the upper mantle, bits of carbon, some likely hailing from long-dead life forms were melted and compressed into rigid lattices. Over millions of years, those lattices grew into the most durable, dazzling gems the planet had ever cooked up. And every so often, for reasons scientists still don’t fully understand, an eruption would send a stash of these stones rocketing to the surface inside a bubbly magma known as kimberlite.


There, the diamonds would remain, nestled in the kimberlite volcanoes that delivered them from their fiery home, until humans evolved, learned of their existence, and began to dig them up. The epic origin of Earth’s diamonds has helped fuel a powerful marketing mythology around them: that they are objects of otherworldly strength and beauty; fitting symbols of eternal love.


But while “diamonds are forever” may be the catchiest advertising slogan ever to bear some geologic truth, the supply of these stones in the Earth’s crust, in places we can readily reach them, is far from everlasting. And the scars we've inflicted on the land and ourselves in order to mine diamonds has cast a shadow that still lingers over the industry.


Some diamond seekers, however, say we don’t need to scour the Earth any longer, because science now offers an alternative: diamonds grown in labs. These gems aren't stimulants or synthetic substitutes; they are optically, chemically, and physically identical to their Earth-mined counterparts. They’re also cheaper, and in theory, limitless. The arrival of lab-grown diamonds has rocked the jewelry world to its core and prompted fierce pushback from diamond miners. Claims abound on both sides. Growers often say that their diamonds are sustainable and ethical; miners and their industry allies counter that only gems plucked from the Earth can be considered “real” or “precious.” Some of these assertions are subjective, others are supported only by sparse, self-reported, or industry-backed data. But that’s not stopping everyone from making them.


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