Diamond Certificate Guide
A diamond certificate (grading report) is an official report prepared by an independent gemological laboratory after examining a stone, documenting its 4C characteristics and measurements.
The certificate proves the identity of the stone and allows you to objectively verify what you are purchasing.
Contents
- What is a Diamond Certificate?
- Why Is It Important?
- What Information Does the Certificate Contain?
- Differences Between IGI and GIA
- How to Verify a Certificate?
- DVS Certificate Approach
- Conclusion
What is a Diamond Certificate?
A diamond certificate is an official report that documents the quality characteristics of a stone, evaluated by independent gemological laboratories.
This report details the diamond's carat weight, cut, color, clarity, and other technical specifications according to international standards.
A certificate is a reliable reference that confirms not only the authenticity of a diamond but also its quality level.
Why Is It Important?
When purchasing a diamond, a certificate provides transparent and verifiable information about the product.
Thanks to an internationally recognized certificate:
- The diamond's quality criteria are objectively evaluated.
- The stone's technical specifications are clearly documented.
- The purchasing process becomes safer and more informed.
- Accurate comparisons can be made between diamonds with the same criteria.
What Information Does the Certificate Contain?
A diamond certificate typically includes the following information:
- Carat
- Cut
- Color
- Clarity
- Measurements
- Polish
- Symmetry
- Fluorescence
- Laboratory Report Number
Each piece of information defines the diamond's quality level according to international standards.
Differences Between IGI and GIA
Among the most widely accepted certification bodies worldwide are IGI (International Gemological Institute) and GIA (Gemological Institute of America).
| Feature | IGI | GIA |
|---|---|---|
| International validity | ✓ | ✓ |
| Laboratory Diamonds | ✓ | ✓ |
| Natural Diamonds | ✓ | ✓ |
| Quality Report | ✓ | ✓ |
Both institutions conduct independent evaluations and apply internationally accepted standards.
How to Verify a Certificate?
Most international certificates have a unique report number.
This number allows the certificate to be verified on the official website of the relevant laboratory.
For some diamonds, this report number is also laser-inscribed on the girdle of the stone.
DVS Certificate Approach
Diamonds used in DVS collections are evaluated and certified in accordance with international quality standards.
Technical information about the diamond is shared openly and transparently on each product page. This way, you can easily access all the information you need during the purchasing process.
An internationally recognized certificate is one of the most important indicators of reliability when choosing a diamond.
Reading the certificate correctly and understanding the information it contains will help you choose the diamond that best meets your needs and expectations.
What Does Your Certificate Include?
A grading report typically includes the carat weight, measurements, 4Cs grading, fluorescence level, and a plot diagram showing the locations of inclusions.
IGI
GIA
HRD
SGL
Independent Assessment Institutions
01. Karat ve Ölçüler
Raporun başında taşın ağırlığı ve milimetrik ölçüleri yer alır.
02. 4C Değerlendirmesi
Kesim, renk, berraklık ve karat ayrı ayrı derecelendirilir.
03. Floresan
Taşın UV ışık altında gösterdiği floresan seviyesi belirtilir.
04. Plan Diyagramı
İnklüzyonların taş üzerindeki konumunu gösteren bir diyagram raporun temel parçasıdır.
GIA
Amerikan Gemoloji Enstitüsü, dünya genelinde en sık referans gösterilen bağımsız pırlanta değerlendirme kurumlarından biridir.
HRD Antwerp
Belçika merkezli, Avrupa pırlanta ticaretinde köklü bir geçmişe sahip bağımsız laboratuvardır.
IGI
Uluslararası Gemoloji Enstitüsü, hem doğal hem laboratuvar pırlantaları için dünya genelinde sertifikasyon hizmeti sunar.