LeiserDiamonds_Zertifikate-GIA-Tisch

The 4 C`s

Basically, four quality characteristics determine the value of a colorless diamond, the famous four Cs:
Cut, Clarity, Color, Carat

Cut

The most important aspect is the cut of a diamond. The colour, clarity and size of the diamond are predetermined. But only the cut with ideal proportions gives a diamond its full brilliance. The experience of the cutter, who shapes a rough diamond into a work of art, is the most important factor. A good cut brings out the fire of a diamond in the best possible way: the incoming light is reflected from one facet to another and bounced back through the surface of the stone. This is how the legendary fire of a diamond is created.

.
LD_Schliffe_Foto
.

Clarity

In addition to carbon, other components can also be embedded in the diamond during its formation. Like no other gemstone, the diamond can achieve a unique brilliance. It is considered flawless when it has no inclusions whatsoever. Depending on the quantity and size of the inclusions, these can hinder the complete reflection of light and thus limit the fire of the diamond.

.
LeiserDiamonds_clarity-chart
.

Colour

The third criterion in the evaluation of diamonds is the colour. The colour is indicated with letters from D to Z. D stands for the highest colour grade (colourless) and Z for the lowest with a distinct hue. Diamonds from D to H are called "white diamonds". From colour grade I, the stones have an increasingly yellowish tone.

.
LeiserDiamonds_diamont-colour-chart
.

Although the first thing one thinks of when thinking of diamonds is a transparent stone, they are extremely rare in flawless white. Equally rare are the so-called "fancy colour diamonds". They have shades outside the D to Z colours and occur in all shades - red, orange, yellow, green, blue, violet, brown, grey and even black. These coloured diamonds are among the most sought-after pieces in the international diamond trade and promise high potential as an investment.

.

Carat

Diamonds are measured in the unit of weight carat. One carat (abbreviation "ct") is equal to 0.2 grams. The carat number is usually given to two decimal places.

Since a two carat is much rarer than a one carat, it has an exponentially higher value. However, this value is only given if it also fulfils the other quality criteria. However, since the probability of inclusions increases with increasing size, these stones are even rarer.

.
LeiserDiamonds_grafik_karat-vergleich
.
THE INOFFICIAL FIFTH C

Certificate

To make diamonds more tradable, certificates were introduced at the beginning of the 20th century. In these, independent, recognised institutions confirm the authenticity of the stone.

In this certificate you will also find details of the four Cs as well as other detailed information. This information is also stored in a database at the issuing institute and can thus be subsequently checked at any time.

see also certificate Check

LeiserDiamonds_Zertifikate-GIA-Tisch

In order to make diamonds and the corresponding certificates even more forgery-proof, the certificate number is engraved on the diamonds by laser engraving.

All diamonds sold by us offer this security feature. This allows you to match the number of the stone with the certificate and the certificate with the information stored in the certifier's database.

This offers you maximum security at all times.

Diamond prices

LeiserDiamonds_lasergravur-GIA
.
.
.