Treated Diamonds

Sometimes we hear the term ‘treated diamonds’; many of us don’t understand the term ‘treated diamonds’ and sometimes we even think that it means synthetic diamonds, which is extremely false. This article will explain what treated diamonds are; how the treatment is done and everything there is to know about the subject.

Firstly, it is important to say that treated diamonds are natural diamonds that source from diamond mines. The difference is that they go through special treatments that are meant to improve their color and clarity. In other words, you can say that treated diamonds are upgraded diamonds. In other articles we talked about the flaws in the diamonds that hurt their clarity and value; diamond polishers, under the orders of diamond raters, do everything they can to produce a perfect and flawless diamonds, but you can’t get rid of all of them with polishing. Modern technology found ways to treat diamonds and improve their look. Through treating diamonds, you can reach an improved look for the diamond, to conceal and hide flaws. The technology that stands by us allows us to improve the clarity of the diamond by two levels or more, a very good reason to treat a diamond. Diamonds go for procedures to improve their look, whether in color or level of clarity and so they are sold at lower prices than untreated diamonds. But on the other hand, they got the same shiny look. A treated diamond is worth less than an untreated diamond, but it is also bought ahead in a fitting price. In the view of the buyer, it is an opportunity to get diamonds in a high level of clarity and a much lower price compared to untreated diamonds.

Methods to treat and improve diamonds:

There are different methods to treat diamonds, in cases of black flaws one of the methods uses focused drilling to reach the flaw and blur it. This drilling method creates microscopic holes in the diamond, thinner than a human hair and unnoticeable by the naked eye. In the 80’s the laser method went through improvements and they started using the KM laser method, which allows removing flaws without regular drilling. This method widens the existent cracks, or creates new cracks, for the purpose of whitening the black peaks through cooking. It isn’t about symmetric drills like in regular drilling but about a drilling method that creates cracks that look natural. After creating the crack, the diamonds go through a process of “deep cooking,” which is treatment with acid or boiling, for removing dark flaws and turning them white or invisible and unnoticeable. There are cases in which the laser beam vaporizes the flaw, and there are cases in which there’s a need to insert acid, which bleaches the flaw. It is important to say that in case the flaws are deep and near the center of the diamond it is more recommended to use focused drilling. Usually, when the flaw isn’t deep, KM laser treatment is used. The decision is made either way by a specialist of diamond treating.There are treatment methods that use special materials to fill the cracks. One of these materials is melted glass or materials containing silicone. There are even cases of inserting small diamonds into the cracks. The filling materials blur, and in many cases conceal the cracks in the diamond.

The treatments for improving the diamond don’t just treat its clarity but also its color. When the diamond doesn’t have a color or a shade that attracts the eye, or if the stone has low transparency and looks mat (a cloudy stone), we will color the diamond in a color that will blur this disadvantage, to a suitable color. For example, a brown stone is customarily painted red, and a cloudy stone is painted blue. The coloring of the diamond is done in friendly laboratories, but some treatments are done through radioactive radiation in which exposing the diamond to nuclear energy makes it develop a color.

HPHT treatment

It is customary to use this treatment to improve the color of the diamond. The meaning of the name is “High Pressure, High Temperature.” This treatment is an external meddling in the inner construction of the diamond, treating the diamonds via high pressure and temperature help make brown diamonds of a certain type into diamonds with a higher level of color. This treatment is meant for raw diamonds that didn’t “cook” fully in the ground during the natural creative process. This procedure reenacts the extreme conditions of pressure and temperature that it had in its creation, to make the diamond reach its destination color-wise.

This treatment fits clear diamonds because flaws in the diamond can hurt it in the conditions of temperature and pressure of HPHT. Actually, only a very small percent of brown diamonds are fit for this procedure, which turns them into white diamonds or rare fancy diamonds. There is no connection between the HPHT process and the diamonds that went through coloring in a laboratory or radioactive radiation. Diamonds treated in this method are more valuable than diamonds treated in other color treatments.

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