Special Natts Process for Diamonds

The Process

Clean the dark.
Reveal the brilliance.

Diamonds can contain dark inclusions such as graphite, sulphide and other iron-containing minerals formed during natural growth.

For aesthetic reasons, visible dark inclusions can reduce desirability. In the Special Natts process, diamonds undergo a vigorous treatment inside the process chamber over a period of 18 and 36 hours.

The process is intended to remove black carbon spots and significantly reduce other inclusions, helping improve the overall brilliance, fire and lustre of the diamonds.

More Attractive. Shiny. Valuable.

The source material describes the process as a way to remove black spots and increase the face value and visual appeal of diamonds.

Advantages

Built around a
Clearer Diamonds

Natts Removal

Removes natts and other inclusions, supporting an uplift in diamond grade and price.

Easier Planning

Upper natts can be removed to make diamond planning easier and more comfortable.

Intensive Process

The document presents it as an intensive alternative to a normal deep boiling process.

Wide Suitability

Suitable for different types of polished diamonds as well as rough diamonds.

Applications

Designed for diverse
diamond lots.

Star Melees

White, LB, LC and similar small melee diamond categories.

GIA Certified

Single pointers from 0.30ct, 0.50, 1.00ct, 1.50ct, 2.00ct, 5ct, 10ct, 15ct, 20ct, etc.

Rough Diamonds

All sizes and qualities, including Catoca, Angola, Zimbabwe, Russian, Diavik and Argyle examples.

Other Materials

Industrial goods, CVD rough diamonds, Polki, Chakri and related materials.

Visual Results

Before & After

Sample 01 Special Natts Process

Sample 02 Special Natts Process

Sample 03 Special Natts Process

Special Natts Process

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