Arthur's collection spans thousands of natural color diamonds in over 300 colors — most kept in the vault, brought out only for specific visitors. Tell us a little about what draws you, and we'll curate a personalized selection for your time in Antwerp.
If a bespoke jewelry piece interests you, there's still time to have something crafted and ready before you leave Belgium. Even if your schedule is full, we can work with you remotely and help you find exactly what you're looking for.
Most people think of diamonds as white. But deep in the earth, extraordinary conditions — trace elements, immense pressure, natural radiation over millions of years — create diamonds in colors that seem impossible. Vivid yellows. Deep pinks. Ocean blues. Intense greens.
They are among the rarest objects on earth. Of every 10,000 gem diamonds mined, one might carry natural color. Arthur Langerman has spent sixty years finding the most exceptional of these — and his collection spans over 300 distinct hues. No two stones alike.
Arthur Langerman began working with natural color diamonds in the 1960s, when the trade dismissed them as curiosities. He saw what others missed: that color in a diamond is not a flaw but an expression of the earth's rarest conditions. He didn't just collect them — he cut and polished most of the stones in his collection himself.
Sixty years later, Langerman Diamonds remains one of the few houses in the world working exclusively with natural color. Arthur and his son Stefan — a mathematician who brings a scientist's precision to a craftsman's trade — know their inventory stone by stone.
Their approach is simple: find extraordinary rough, bring out its color through cutting and polishing, and match the finished stone to someone who will appreciate what makes it rare.
Nitrogen atoms, captured in the crystal lattice billions of years ago, absorb blue light and release warm color. The more nitrogen, the deeper the hue — from light lime to vivid canary to intense orange. These are among the most common color diamonds, yet a truly saturated stone remains rare.
