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Diamond is the hardest substance in the world and is formed in a process that takes billions of years, during which it is subjected to great pressure from the Earth’s core. The diamond is made entirely of carbon and is formed at a depth of between 150 and 250 km below the surface of the earth at a tremendous heat of 1000-1200 degrees Celsius.

The possible reason for the enormous and rare attraction of diamonds is their extraordinary ability to reflect light, since the diamond is the mineral with the optimal light reflection ability in nature.

Guide to buying a diamond – what should you check?

Here you have reached an exciting moment in life when you are about to buy a diamond, so what is important to check?

It is worth checking that the diamond you are interested in is completely natural.

There are quite a few supposedly “natural” diamonds that have undergone chemical treatment to improve their degree of clarity and color. These diamonds are called treated diamonds and their value is significantly lower than the value of completely natural diamonds. This is the place to also mention the lab diamonds or synthetic diamonds that are produced in a laboratory, whose market value The wholesale price of diamonds is very low. In addition to making sure that you are purchasing the diamond from a trusted place that purchases diamonds (conflict free), the supplier is obliged to purchase only diamonds that are under international supervision in order to avoid purchasing blood diamonds or conflict diamonds.
It is worth checking that the diamond was tested in a gemological laboratory as a “free diamond” (a diamond that was tested before being set in jewelry) and a certificate was attached to the diamond (and not to the jewelry). Here it is very important to pay attention to which laboratory issued the certificate for the diamond. Since all laboratories work according to the same scale and criteria, the consumer who is not familiar with the field may be confused. But don’t worry, the solution is quite simple, just as you don’t compare apples to oranges, you can’t compare the price of a diamond that received a certificate in gemological laboratory x to the price of a diamond that received a certificate in gemological laboratory y. This is because each laboratory gives a grade according to its own quality standard. In other words In other cases, the exact same diamond may receive a different grade in each laboratory. A skilled diamond tester will ask which laboratory the certificate was issued from.
Our recommendation: For those conducting market research, request the jewelry with the selected diamond in the proposed grade but insist that it be supplied with a GIA gemological certificate. This is so that you can receive the true value of the diamond.
You can also check our recommendation and see that in most cases, the supplier will refuse to issue a GIA certificate (the laboratory with the strictest standards), because the offered diamond will receive a significantly lower grade after testing in the GIA laboratory (which is also the reason why a GIA laboratory certificate was not attached to the diamond in the first place).
It is worth getting to know and understand the data that appears on the gemological certificate attached to the offered diamond. The 4c’s, but not only.
The term 4c’s refers to the first letter of each criterion out of the four The most well-known and prominent criteria in the evaluation and classification of diamonds (Cut, Carat, Clarity, Color – cut, weight, cleanliness, color).
Before we explain each of them, it is important to know that beyond the 4c’s, there are additional criteria indicated in the certificate, the combination of which will give us the market value of the diamond.
For example, a gemological certificate should also refer to the polish, symmetry, and ideal dimensions of each part of the diamond in relation to its weight.
For example, an asymmetrical diamond will scatter the light from its upper part in a wide arc and thus our eye will see a weaker sparkle (even if the diamond’s clarity and color rating are high).
Therefore, it is very important to know all the criteria and not purchase a diamond only based on color and clarity ratings.
The Smadar Adri studio team will be happy to advise and explain the subject in detail. Contact us here.
Diamond Cut –

There are different types of cuts Diamonds. There are a wide variety of cutting options for a round diamond. In order to take full advantage of the light reflection effect, we must be careful to cut its facets at certain angles so that the highest ratio of light reflection is created. Therefore, over the years, several types of cuts have been developed.

The most coveted cut in the diamond world is the “Ideal Cut”, which translates to “the ideal diamond cut”. Light reflection operates according to clear mathematical rules, and in order to take full advantage of the effect, the basic laws of optics are used.

The difficulty involved in cutting a diamond ideally lies in its weight; in order to polish a diamond according to the most ideal parameters, we will lose a lot of weight relative to its original size. Sometimes the differences in weight are critical. For example, to cut an “ideal cut” diamond that weighs 2.6 carats in the rough, one would have to give up about 60% of the diamond’s weight so that its final weight after the ideal cut would be only -0.92 carats. That is, in order to cut it with an ideal cut, the cutter would lose the coveted size of 1.00 carats. This means that the value of the diamond would be lower at a weight of 0.92 carats, compared to a one-carat diamond with a non-ideal cut. Thus, a certain conflict of interest is created; on the one hand, the polisher’s aspiration is to polish the diamond with an ideal cut, on the other hand, if he does so, the diamond will lose its value, because a one-carat weight has a completely different price tag compared to a 0.92-carat diamond. The ideal cut of a diamond is considered relatively expensive, because the owner of the diamond prices the large loss of material. The ideal cut is represented in the table with the Excellent rating.

Therefore, the ideal diamond cut depends on the relationships between the diamond’s facets, which are extremely important to obtain the desired sparkle and light reflection effect. When settling on a diamond that is not in an ideal cut, this must be taken into account in order to understand the reason why one diamond sparkles more than another, and also the reason why two diamonds of similar weight, color and clarity will not look the same and will have different values.

Most of the public tends to attach great importance to color and clarity and less to the cut, which is very significant and important in determining the value of the diamond.

Diamond Weight – Carat – ct (unit of weight)

The diamond weight criterion is very simple to understand. Carat is a unit of weight (similar to grams, kilograms, tons, etc.) and this unit of weight is commonly used to weigh gemstones and diamonds. The greater the weight of the diamond, the higher its value. This formula holds as long as the quality of the diamond is maintained.

In this context, we will give another example of