Natural Colored Diamond Reports & Services Details

The GIA Colored Diamond Grading Report provides a full quality assessment of a natural colored diamond including the color grade and color origin (natural vs. treated color), carat weight, and clarity along with a plotted diagram of its clarity characteristics.

Submission Criteria

• 0.15 carat and up

• Loose natural

• Colored diamonds

The Colored Diamond Origin Report includes a full assessment of the 4Cs along with a plotted diagram of its clarity characteristics, a confirmation of geographic origin, and laser inscription of GIA report number for easy identification. This service is only for eligible diamonds, weighing 0.15 carats or more, that have gone through rough analysis with GIA before polishing.

Submission Criteria

• 0.15 carats and up

• Loose natural

• Colored diamonds

• This service is only for eligible diamonds that have gone through rough analysis with GIA before polishing.

The GIA Colored Diamond Identification and Origin Report provides a quality assessment of a natural colored diamond including the color grade and color origin (natural vs treated color).

Submission Criteria

• Any carat size

• Loose natural or mounted

• Colored diamonds
  
  NOTE: Services for Colored Diamonds weighing less than 0.15 are only available in New York.

Some services may be completed in 24 hours.

Service Restrictions
24-Hour services will vary by intake location, so please check availability with your local Client Services Representative.

GIA does not offer the same day service on colored diamonds that may be considered green, pink or blue in color. The testing needed to determine the origin of these types of diamonds often takes more time than a 24-hour service time frame allows.

Personalize, brand or easily identify your diamond. Microscopically inscribe a personal message, symbol, logo, or your diamond’s unique GIA report number on its girdle.

• Loose natural

• Colored

• D-to-Z diamonds

Service Restrictions
Not available with Report Verification services.

Sealing Service has been suspended as of Friday, January 17, 2020

A digital photograph of your colored diamond can be included on your GIA Colored Diamond Grading Report or Colored Diamond Identification & Origin Report.

Submission Criteria

• Loose natural

• Colored diamonds

If the Color Origin stated on your GIA report is "Treated Color", a Diamond Color Treatment letter can be requested to provide the specific color treatment method.

Submission Criteria
Letter can be requested without resubmitting the diamond.

The Damage Assessment service is offered as a supplement to GIA diamond reports to determine if a diamond has been damaged since its last polishing. Results of the damage assessment are delivered in letter format.

Submission Criteria

• Loose natural or mounted

• Colored or D-to-Z diamonds

GIA will determine your diamond’s type (Ia, Ib, IIa, or IIb) and contact you with the results. You may also request a letter and photograph of the diamond with your analysis for an additional charge.

Submission Criteria

• Loose natural

• Colored or D-to-Z diamonds

Request a re-assessment of your diamond’s color, cut, clarity, color origin, polish, symmetry, measurements or fluorescence results and a new report will be issued.

Submission Criteria

• Loose natural

• Colored or D-to-Z diamonds

Service Restrictions
Must be requested during the time of service before the item is returned. If requested within sixty days after the item is returned, the original report must be submitted and an Update service must be performed prior to the Recheck or Final Observation.

Submit your diamond to be re-graded based on its current condition. Update service can accompany Add-On services such as Sealing or Inscription where a re-evaluation of the diamond is required prior to performing the Add-On service.

Submission Criteria

• Loose natural

• Colored or D-to-Z diamonds

• Diamond must be submitted along with its original GIA report, if available

If your GIA-graded diamond has been re-cut, submit your diamond for a Re-Examination. The diamond will go through the grading process and a new report will be issued. The old report will not be returned. 

Submission Criteria

• Loose natural

• Colored or D-to-Z diamonds

Confirm that your GIA report matches your diamond. Verification results will be returned in letter format attached to your original report.

Submission Criteria

• Loose natural or mounted

• Colored or D-to-Z diamonds

• Diamond must be submitted along with its original GIA report

• ​Mounted items must be submitted directly to the Carlsbad Laboratory

Service Restrictions
Laser Inscription service not available with Report Verification.