International Diamond Council Diamond Grading Laboratories

DCLA Trustmark:

A definitive mark that identifies diamonds independently graded

to the highest certification standards.
Where you see this trustmark, the diamond vendor will be providing you with an independently certified diamond, examined and graded

by a qualified and recognised laboratory.

***

CAUTIONARY NOTICE

to the

Diamond Trade and Public

Be aware of pseudo diamond grading laboratories using fraudulent and misleading phrases such as "The laboratory adheres to the grading standards of the IDC (International Diamond Council)" or "grading to IDC rules".

*

In order to adhere or grade to IDC rules, the Diamond laboratory must have.

1. Full gemmological facilities.

2. Registered master sets of Diamonds.

3. The official set of rules to which multiple graders work.
The IDC Rules are the diamond grading guidelines devised by the International Diamond Council ( IDC ), which was set up in 1978 by the World Federation of Diamond Bourses ( WFDB ) and the International Diamond Manufacturers Association ( IDMA ).

*

There are currently five gemmological laboratories worldwide that apply the IDC Rule Book.

They are:

1. The Certificates Department of the Antwerp Diamond High Council ( HRD ), Belgium;

*

2. The Swedish Testing Institute, Stockholm, Sweden;

*

3. The SAJC (Jewellery Council of South Africa Laboratory), Johannesburg, South Africa;

*

4. The Diamant Prueflabor, Idar Oberstein, Germany.

*

5. The DCLA (Diamond Certification Laboratory of Australia), Sydney, Australia;

*

***

International Diamond Council
In 1975, The World Federation of Diamond Bourses (WFDB) and the International Diamond Manufacturers Association (lDMA), appointed a Joint Committee to create an international standard for rules, working methods and nomenclature.

*A comprehensive system of rules and methods was built up, combining the practical experience of professional diamond people with scientific facts and figures.

* The Committee later changed its name to the International Diamond Council (IDC). In May 1978 the "International Rules For Grading Polished Diamonds” were unanimously approved at the 19th Congress of the World Federation of Diamond Bourses and International Diamond Manufacturers Association. All the major diamonds laboratories have since adopted the system.

***

Diamond Imports

DCLA Certified Diamonds

Subscribe in a reader