World Leading Grading

We believe buyers should feel confident when purchasing a diamond and therefore we strive to offer a level of professionalism and integrity unrivalled in the industry.

Utilising over 130 years of experience, we exclusively grade only natural and untreated diamonds. Our grading combines 21st century technology and techniques with the leading industry standards. This combination of innovative grading systems and transparent published standards, ensures unparalleled accuracy and global consistency in our grading.

OUR GRADING VALUES

“ We are very proud to exclusively grade natural and untreated diamonds ”

Jamie Clark - Head of Global Operations, De Beers Institute of Diamonds

Accuracy

Our laboratories make use of market leading instruments and proprietary technology to support our grading and provide the most accurate and consistent diamond appraisals.

Integrity

We ensure the integrity of all our processes by using a 'black box' system where diamonds are distributed in anonymous boxes so that each diamond is appraised fairly according only to its features.

Consistency

We employ some of the world's most experienced graders, who undergo rigorous training, so that they have the knowledge and expertise to evaluate every diamond accurately and consistently, wherever it was mined.

Discover what makes our grading special

Watch our video for an overview of our grading!

Our grading explained

We have transparent published standards for colour, clarity and cut grade for polished diamonds to ensure our grading is accurate and consistent throughout the process. The technology we use, developed by De Beers Group, provides support in areas of treatment detection as well as proportion and colour grading.

Check Your Report

A grading report is a vital record of the features of a diamond that make it unique and ultimately determine its value. Our report check enables you to be assured of the authenticity of the grading.

Report Check

Register for an account

Register for an account that will give you access to our grading services through our client portal, enabling you to submit diamonds for grading, as well as see live updates as your shipments move through our grading process and download your grading reports 24/7.