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The
fifth ‘C’

During our frequent visits to our diamond dealers in Antwerp, we are often presented with a range of stones featuring the exact same certificates and prices. Of all the diamonds we examine in person, usually only one has the exceptional qualities that merit the Hartmann’s name.

How do we select it?

When we assess a diamond to see if it can become a Hartmann’s diamond, first and foremost we look at the four C’s.

Of course, the cut and shape must be exquisite in relation to the weight, and the clarity must be at the top end of the spectrum.

But for us, the four C’s are far from enough when assessing a diamond. Several other criteria influence our choice, such as the proportions between each facet, the symmetry of the stone, the position of any inclusions, the fluorescence, etc.

There is also another aspect. An unspoken, inexplicable element which makes one diamond resonate with us more than any of the others. Perhaps the difference is a subtle, almost imperceptible combination of clarity, cut and light refraction. Or the reflective, luminous qualities on the surface of the stone are much more uniform.

Very often, it’s impossible to articulate these extra nuances. Over the years, we have closely examined and appraised literally thousands of diamonds.

Given our extensive experience and passion for diamonds, we go one step further in our professional appraisal of stones – we also rely on our intuition. Because we know that when it comes to diamonds, there’s an extra dimension that comes into play: love at first sight.