Reports
Lab-Grown Diamond Report
Laboratory-grown diamonds share the essential chemical, physical and optical properties of natural diamonds. A WGI Lab-Grown Report confirms the laboratory-grown origin of the stone and records its grading characteristics, giving buyers and sellers a clear, independent description.
What the service provides
- Confirmation that the diamond is laboratory grown
- Grading of the diamond's characteristics
- A report with an online verification number
The process
- 01The stone is screened with specialised identification equipment
- 02Growth features are examined under magnification
- 03The diamond is graded and measured
- 04The report is prepared and recorded online
What a report may contain
- Origin: laboratory grown
- Shape and measurements
- Carat weight
- Colour and clarity
- Cut, polish and symmetry where applicable
Who it is for
- Buyers of lab-grown diamonds and jewellery
- Retailers selling lab-grown diamonds
- Manufacturers and dealers
Report contents depend on the item submitted. WGI describes the characteristics found; results cannot be guaranteed in advance.
World Gemological Institute
Discover the Confidence of WGI.
Whether you are exploring lab-grown diamonds, seeking professional gemological services or learning more about your jewellery, discover the expertise behind WGI.