shine
Diamonds
Nothing compares to the radiance of a diamond. Lose yourself in its sparkle, in the symmetry of its
cut and in the variety of its colors - with the diamonds of VON KÖCK.
OUR EXPERTISE
Thanks to our expertise and advice, we can guarantee you a clear view on the world of diamonds.
With an exclusive training at the Gemological Institute of America Inc. – the international reference
institute for gemstone and diamond determination – we offer you the professional expertise for
reliable quality assessment and a smooth and safe acquisition of the diamonds. The membership of
the Diamond Exchange allows us to provide you with the right certified diamond for your individual
wishes.
OUR DIAMOND GUIDE
Diamonds are globally classified according to four strict criteria. The so-called "4 Cs" are only
extended by a fifth one at VON KÖCK. You can find out what these "5 Cs" mean for you here.
CUT
Each angle and measure contributes to the classification of the "cut degree". We know exactly which
have the biggest influence and how to measure them. Therefore, we only offer diamonds that
receive the rating "very good" or "excellent" at graduation.
CARAT
Contrary to popular belief, carat is not the size, but the weight. At VON KÖCK, we are always looking
for diamonds that are cut solely with the aim of maximizing brilliance and fire, not weight. For us,
beauty matters, not size.
COLOR
Only a minimal percentage of the world's diamonds are "colourless" or "almost colourless". Over
95% of all diamonds have an obvious yellow or brown tinge. However, we at VON KÖCK only use
diamonds where absolutely no tint is visible from above – because diamonds are graduated upside
down.
CLARITY
The purity grading of diamonds is done at ten times magnification, but there are diamonds that do
not require magnification to detect inclusions – even in the "slightly included (SI)" and "very slightly
included (VS)" levels. We reject these diamonds, in which inclusions are visible to the naked eye!
CONFIDENCE
The fifth C from VON KÖCK is unique in the world of diamons. It stands for Confidence – your trust
that you place in us and that encourages us every day to extend our expertise. For this reason, as
trained gemologists and renowned jewel experts, we can offer you extensive experience and an
thorough professional evaluation of each diamond. With internationally recognized certificates from
specialist institutes such as GIA (Gemological Institute of America, California) or HRD (High Council
for Diamonds, Antwerp), we guarantee you the safety of the most renowned diamond testing labs in
the world.
THE KÖCK DIFFERENCE
We at VON KÖCK can assure you that not a single diamond comes from war zones. We examine
every stone for its flawless quality before the most experienced and best diamond and stone cutters
in the world process it into a perfectly matched piece of jewellery. This is the only way to guarantee
that our diamonds are not cut too flat or too deep.
Contact
Opening Times
Mo - Fr
10:00 to 18:00
Sa
10:00 to 17:30
Make an appointment
Please select a date for a personal consultation in our flagship store.
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