1.3.1. DIAMONDS TREATED BY A NON PERMANENT TREATMENT/ENHANCEMENT-PROCESS
1.3.1.1. FILLING
May not be graded and certified.
A Treated Diamond Examination Report can be issued.
- On the Treated Diamond Examination Report, it must be mentioned that the stone has been identified as a “Treated Diamond”.
- Under the comments section of the Treated Diamond Examination Report the wording “Filled” must be mentioned.
- On the Treated Diamond Examination Report, besides a description on the nature of a stone, also the weight, measurements and shape must be described. No other results may be given.
1.3.1.2. COATING
May not be graded and certified
A Treated Diamond Examination Report can be issued.
- On the Treated Diamond Examination Report, it must be mentioned that the stone has been identified as a “Treated Diamond”.
- Under the comments section of the Treated Diamond Examination Report the wording “Coated” must be mentioned.
- On the Treated Diamond Examination Report, besides a description on the nature of a stone, also the weight, measurements and shape must be described. No other results may be given.
1.3.2. DIAMONDS TREATED BY A PERMANENT TREATMENT/ENHANCEMENT-PROCESS
May be graded and certified.
A Treated Diamond Grading Report/Certificate may be issued.
- The Treated Diamond Grading Report/Certificate must be issued in a jacket-cover that is printed in a colour that is distinctive from the colour used for the jacket-cover of the Grading Reports/Certificates of “Diamonds” or “Natural Diamonds”.
- The wording “TREATED DIAMOND GRADING REPORT/CERTIFICATE” must be mentioned on the cover.
- On the Treated Diamond Grading Report/Certificate, it must be mentioned that the stone has been identified as a “Treated Diamond”.The section of the Treated Diamond Grading Report/Certificate, referring to the colour or the colour grade, must contain the wording - in capital letters – “TREATED”, with a referral by means of a superscript.
The superscript refers to the comments section of the Treated Diamond Grading Report/Certificate where the description of the colour must be mentioned. This description must be followed by the wording “treatment(s) detected”.
- Treated diamonds can only be certified if clearly laser inscribed.
- The presence of the laser inscription must be mentioned on the Treated Diamond Grading Report/Certificate: inscription on girdle: TREATED.
1.3.3. SYNTHETIC DIAMOND
May be graded and certified.
A Synthetic Diamond Grading Report/Certificate may be issued.
- The Synthetic Diamond Grading Report/Certificate must be issued in a jacket-cover that is printed in a colour that is distinctive from the colour used for the jacket-cover of the Grading Reports/Certificates of “Diamonds” or “Natural Diamonds”.
- The wording “LABORATORY-CREATED/LABORATORY-GROWN/MAN-MADE/ SYNTHETIC DIAMOND GRADING REPORT/CERTIFICATE” must be mentioned on the cover.
- On the Synthetic Diamond Grading Report/Certificate, it must be mentioned that the stone has been identified as a “Synthetic Diamond”.
- Synthetic diamonds can only be certified if clearly laser inscribed.
- The presence of the laser inscription must be mentioned on the Synthetic Diamond Grading Report/Certificate:
- inscription on girdle: LABORATORY-CREATED/LABORATORY-GROWN/MAN-MADE/ SYNTHETIC
- The definition of a synthetic diamond will be mentioned on the Synthetic Diamond Grading Report/Certificate.
* “Man-made product that has the same chemical composition, crystal structure, optical and physical properties as a diamond/natural diamond.”
Or
* “Man-made reproduction of diamond that has the same chemical composition, crystal structure and physical properties as its natural counterpart.”
Or
* “Synthetic diamonds are man-made, artificially grown crystals. The structural, chemical and physical properties of artificially produced crystals are identical to those of diamond/ natural diamonds.”
1.3.3.1. GRADING OF THE COLOUR
The colour will be described in the descriptive terms of the scale:
- Colorless
- Near colorless
- Faint
- Very light
- Light
1.3.3.2. GRADING OF THE CLARITY
For loupe-clean stones the term FI – Free of Inclusions will be used.
For the other grades, the distinction between 1 and 2 is dropped. In addition, “small” is replaced by “light” in the definitions, with the intention to make the difference between synthetic and natural obvious at first glance.
- VVL very, very lightly included
- VL very lightly included
- L lightly included
- I included
- HI heavily included
1.3.3.3. GRADING FLUORESCENCE, PROPORTIONS AND FINISH
Same grading-system as for a “Diamond”.
1.3.3.4. GRADING OF FANCY COLOURS
Same grading-system as for a “Diamond”.
Never use the term “fancy” to grade a laboratory-created/laboratory-grown/man-made/synthetic diamond.
1.3.4. TREATED SYNTHETIC DIAMOND
1.3.4.1. SYNTHETIC DIAMONDS TREATED BY A NON PERMANENT TREATMENT/ENHANCEMENT-PROCESS
1.3.4.1.1. FILLING
May not be graded and certified.
A Treated Synthetic Diamond Examination Report can be issued.
- On the Treated Synthetic Diamond Examination Report, it must be mentioned that the stone has been identified as a “Treated Synthetic Diamond”.
- Under the comments section of the Treated Synthetic Diamond Examination Report the wording “Filled” must be mentioned.
- On the Treated Synthetic Diamond Examination Report, besides a description on the nature of a stone, also the weight, measurements and shape must be described. No other results may be given.
1.3.4.1.2. COATING
May not be graded and certified
A Treated Synthetic Diamond Examination Report can be issued.
- On the Treated Synthetic Diamond Examination Report, it must be mentioned that the stone has been identified as a “Treated Synthetic Diamond”.
- Under the comments section of the Treated Synthetic Diamond Examination Report the wording “Coated” must be mentioned.
- On the Treated Synthetic Diamond Examination Report, besides a description on the nature of a stone, also the weight, measurements and shape must be described. No other results may be given.
1.3.4.2. SYNTHETIC DIAMONDS TREATED BY A PERMANENT TREATMENT/ENHANCEMENT-PROCESS
May be graded and certified.
A Treated Synthetic Diamond Grading Report/Certificate may be issued.
- The Treated Synthetic Diamond Grading Report/Certificate must be issued in a jacket-cover that is printed in a colour that is distinctive from the colour used for the jacket-cover of the Grading Reports/Certificates of “Diamonds” or “Natural Diamonds”.
- The wording “TREATED SYNTHETIC DIAMOND GRADING REPORT/CERTIFICATE” must be mentioned on the cover.
- On the Treated Synthetic Diamond Grading Report/Certificate, it must be mentioned that the stone has been identified as a “Treated Synthetic Diamond”.
- The section of the Treated Synthetic Diamond Grading Report/Certificate, referring to the colour or the colour grade, must contain the wording - in capital letters – “TREATED”, with a referral by means of a superscript.
The superscript refers to the comments section of the Treated Synthetic Diamond Grading Report/Certificate where the description of the colour must be mentioned. This description must be followed by the wording “treatment(s) detected”.
- Treated Synthetic diamonds can only be certified if clearly laser inscribed.
- The presence of the laser inscription must be mentioned on the Treated Synthetic Diamond Grading Report/Certificate: inscription on girdle: TREATED SYNTHETIC.
