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CARATS – Weight

The weight of a diamond is included in the carat

COLOR – Color

The whiter/colorless a diamond is, the more valuable it is

CLARITY – Purity

This unit determines the purity of a diamond

CUT – Cut

The cut is the most important criterion of a diamond

123GOLD premium selection:

Polishing: excellent

Gloss: excellent

Symmetry: excellent

Certification: GIA

Fluorescing: none

Price: unbeatable

All diamonds are available immediately, from the warehouse

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Set up your customized diamond ring, simple and unique.

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Choose one of the many and varied mounts and alloys

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In the next step, choose the ring size and the engraving

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Only a recognized certificate gives you the certainty of the authenticity of a diamond. However, the evaluation framework in this case is broad. For this reason, we, at 123GOLD, have decided to collaborate exclusively with the best and most recognized laboratories. The most reliable analyzes confirm both us and our customers that indeed the quality mentioned is the right one, and thus the diamond has the right value.


The best "quality seal" for diamonds

100% safety and guarantee

Certificate of authenticity and proof of ownership

Your jewelry with certified diamonds

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Anyone who decides to buy a diamond should make sure that the diamond meets the high
quality criteria and therefore its value. Terms such as "flawless" are known to most buyers.
Most buyers are familiar with terms such as "flawless", but few realize that this quality feature alone is not enough.

The quality of a diamond is determined by the 4 Cs.

The weight of a diamond is in carats (abbreviated ct.). 1 carat corresponds to 0.2 grams and is divided into 100 points. Because of this, half a carat weighs 0.1 grams and has 50 points. Do not confuse the weight of the diamond with its size, which is influenced by both its size and the quality of the grinding. Important to know: if all the factors are met equally, then the diamonds with a higher carat are more valuable than those with a lower weight.

The word Carat comes from the Greek word "Keration" and is used as a name for the locust bean, a mathematical miracle of nature: each seed of the bean has the same weight. One metric carat corresponds to exactly 0.2 grams. Because of this, these grains were once used by jewelers as measures to determine the weight of Gold and of the precious stones.

Diamonds of all sizes are used for jewelry purposes. Brilliants over ¼ carats are perfect for solitaire rings. The following table exemplifies the different sizes of diamonds and their approximate diameter. It may vary depending on the individual polishing performance.

Stone carat schema

Diamonds are of different colors. For the value of a diamond it is necessary: that the more colorless the stone, the brighter it shines and thus it is more valuable. The white light penetrates and is reflected in the rainbow's color spectrum. The most valuable are the diamonds in the color "River" (= pure white"), followed by "Top Wesselton" (= fine white) and then "Wesselton" (= white, standard quality).

Depending on each laboratory, the color of diamonds is cataloged by different notions:
River, the most colorless, white-blue diamond bears the letter D and E.
F and G denote the pure white of Top Wesselton.
Wesselton diamonds are white and bear the letter H.

Meanwhile, more precious diamonds are being sold, the so-called Fancy Diamonds or "Fancies", diamonds with a more obvious and uniform pigmentation. Fancies actually account for a percentage of world production. First of all, diamonds in deep red and pink are very rare and thus very expensive. The most expensive diamond at the moment, a pink and emerald gemstone, weighing 24.7 carats, has been auctioned by a diamond dealer for no less than 46 million Dollars.

Stone color schema

A diamond is purer and more valuable, the fewer inclusions it has. Inclusions mean the included minerals, spindles or growth marks, which influence the optimal penetration of light through the diamond. For diamonds like jewelry, it is important that the inclusions are not visible to the naked eye or at least not at first glance. If diamonds serve as a capital investment, then the high degree of purity plays a very important role. Flawless diamonds, which do not show inclusions even at a tenth magnification, are the purest diamonds and thus the rarest. The official assessment is made from FL/IF (flawless) to P3 (coarse inclusions). Detailed diagram:

FLFlawlessLack of inclusions and external features
IFInternally FlawlessNo inclusions
VVS1-VVS2Very, Very Small InclusionsVery, very small inclusions, at a tenfold increase
VS1-VS2Very Small InclusionsVery small inclusions, at a tenth increase
SI1-SI2Small InclusionsNo inclusions observed with the naked eye
P1-P3PiquéInclusions visible to the naked eye are observed

In the case of smaller diamonds, purity is normally classified as less pure. For example, instead of VS1 or VS2, it is indicated only VS or even just one domain, such as VS-SI. But the inclusions are also what make a gemstone unique.

All diamonds purchased from 123GOLD have a minimum SI quality (small inclusions).

Stone clarity schema

The cut of a diamond determines the brilliance of a gemstone and thus is the criterion that significantly influences the beauty of a diamond, because the proportions are decisive for the reflection of light. The ideal cut has an extraordinary brilliance, the best proportions and symmetry. In the case of excellent cut, the brilliance, proportions and symmetry are excellent. Brilliance oscillates between “very good” (=excellent brilliance), “good” (=good brilliance), “medium” (=fair brilliance), or “unusual” (=poor brilliance) graduation. In the case of proportions and symmetry, the deviations become larger with the decrease in the quality of the diamond.

ExcellentOptimal cutThe best possible brilliance, without foreign features
Very GoodVery good cutExcellent brilliance, few or only insignificant foreign features
GoodGood cutGood brilliance, some foreign features
FairMedium cutDecreased brilliance, more foreign features
PoorMinimal cutVisibly diminished brilliance, many and/or great foreign features

Each diamond in a piece of jewelry is polished into a specific shape. The most beloved shape is the one with polishing in 57 facets. In addition, there are many other shapes such as the Princess, Emerald, Heart, Oval, Marquise or Drop sanding types.

In the case of polishing, the skill of the man who processes the diamond matters a lot. The purpose of a perfect polishing is the optimal reflection of the light through the facets. The well-polished diamonds reflect almost all incidentals light.

Stone cut schema

To enjoy your diamond jewelry for longer, we recommend the following 123GOLD Maintenance Tips for your diamond jewelry.