Diamond Treatments

WHAT ARE THE DIFFERENT TYPES OF DIAMOND TREATMENTS?

There are Various ways of “treating” a diamond, such as heat. Heat can be used to enhance the colorlessness of a diamond or intensify the color of fancy colored diamonds. The results of these treatments can produce temporary or permanent results. However, treated stones are worth far less per carat than natural stones.

These are the other common diamond treatments in use today:

HPHT

High Pressure-High Temperature (HPHT) is a process that applies extreme pressure —approximately 850,000 pounds per square inch — and very high temperature — of about 1,600 degrees centigrade — to the diamond. By altering the molecular structure of natural diamonds, HPHT greatly enhances their color. Only certain types of diamonds can be affected by this treatment, which can turn a brown diamond colorless.

Chemical Vapor Deposition

This square cut requires a higher depth percentage in order to maximize its brilliance. It has fewer facets than the typical cuts.

Laser Drilling

Lasers are used to minimize the appearance of flaws and make them less visible. The results of laser drilling are permanent. Drilling will and does leave colorless cavities in the diamond.

Irradiation

The irradiation of diamonds can result in the production of fancy colored stones, especially blues, greens and deep yellow. Radiation may also be used to reduce the flaws on a diamond.

Painting

This process involves painting a very thin coat of a chemical substance over the entire stone, or part of it, to improve the color. Painting neutralizes the yellow in the stone and can improve the color by as much as seven grades.

Always consult an expert certified gemologist before investing in a diamond. To speak with an expert call or email (561) 716-0377, This e-mail address is being protected from spambots. You need JavaScript enabled to view it .