Jewellery Certificate

A diamond certificate, also called a diamond grading report, diamond dossier®, or diamond quality document, is a report created by a team of gemologists. A diamond certificate is a proof that a diamond has undergone an unbiased, professional examination.


The GIA is one the most highly respected diamond grading laboratories in the world, known for having the most strict and unbiased grading systems for diamonds. From their base in California, the GIA produces two types of reports, depending upon the size of the diamond.

GIA diamond grading report:

This is viewed within the diamond trade as the world's premier gemological credential. A4 in size and presented in a laminated sleeve, this report accompanies all diamonds of size 1.00ct and upwards, and provides not only an analysis of all the technical data about the diamond, but also provides a plotting diamond which illustrates the size, type and position of the diamond’s inclusions.

When a diamond is accompanied by a GIA certificate, the consumer is assured that the stone has been analyzed by an unbiased gemologist who upholds the highest standards of integrity, science, and professionalism.


The IGI is one of the world's foremost diamond laboratories. Each diamond is scientifically analyzed by several gemologists who, using the latest state-of-the-art equipment, provide an accurate description of the characteristics of the diamond and quality of its cut. The IGI issues approximately 1 million diamond grading reports each year.

An IGI certificate is comprised of a detailed analysis of a diamond's characteristics by several expert gemologists. IGI's mission is to provide jewelry professionals and consumers with extensive education programs and reliable diamond and fine jewelry certification.

IGI Certification IGI is the largest independent gem and jewelry certification and appraisal institute with operations worldwide. IGI is also an ISO accredited worldwide organization. Over the past three decades, IGI´s commitment to quality services, extensive experience, expertise and its longstanding reputation for reliability and integrity have made IGI the standard of excellence in gemology and fine jewelry evaluation worldwide.

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