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Light Performance Report

Fiery Rounds

The Light Performance Report by the International Gemological Institute (IGI) is an essential tool when it comes to round diamonds - offering a comprehensive evaluation of how a diamond interacts with light. While most standard diamond reports focus primarily on the 4 C’s - cut, color, clarity, and carat, the Light Performance Report focuses on properties such as a diamond’s brilliance, fire, and contrast. These three characteristics define a diamond’s scintillation, a quality that many consumers consider to be the most appealing in a diamond.

Here at Friendly Diamonds, we wanted to go the extra mile for you; we have curated a line of round diamonds that display top optical performance and have received exceptional grades on IGI’s Light Performance Report.

What is Light Performance?

Light performance in diamonds refers to how the diamond is able to reflect, refract, and disperse light. A diamond’s interaction with light results in its brilliance, fire, and contrast. The cut of a diamond significantly affects its interaction with light, making this report a vital part of diamond grading.

This is what a Light Performance Report looks like- it is broken down into 5 grades ranging from ‘Low’ to ‘Exceptional’. The overall grade is an average of the 3 key aspects.

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Key Aspects of Light Performance

Brightness
Brightness

This property is an indication of the amount of white light that is reflected from diamond. This report evaluates how well a diamond returns light to the observer’s eye.

fire
Fire

This characteristic focuses on the flashes of color seen by the observer when the diamond is tilted. A diamond with more flashes of color is considered more appealing to a consumer.

Contrast
Contrast

Contrast refers to the variation between light and dark areas in a diamond, which contributes towards a diamond’s overall visual appeal and sparkle when the diamond is moved.

Benefits of Light Performance

1

Confidence

An analysis of a diamond’s interaction with light gives you confidence in your purchase. This is why we decided to introduce the ‘Fiery Rounds’ collection.

2

Value Awareness

Purchasing diamonds is a big decision and understanding how the value of your diamond is determined can help you make a more informed decision.

3

Trust

This report offers an objective assessment of a diamond’s optical properties. This transparency helps build trust with consumers.

4

Education

At Friendly Diamonds, we truly believe in educating our consumers and ensuring that they are happy with their decisions.

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To learn more about IGI Light Performance Report, please visit

https://www.igi.org/grading-process/cut-grading/