What certifications should I look for in a diamond?
When evaluating diamonds, it is essential to consider specific certifications that ensure the quality and authenticity of the stone. The most recognized certification organizations include the Gemological Institute of America, often referred to as GIA, and the American Gem Society, known as AGS. Each of these organizations provides a detailed grading report that assesses various factors such as cut, color, clarity, and carat weight, which are commonly known as the "Four Cs" of diamonds.
A GIA or AGS report is highly regarded in the diamond industry, as they follow strict guidelines and employ experienced gemologists to evaluate each diamond. Other reputable laboratories, such as the International Gemological Institute (IGI) and the European Gemological Laboratory (EGL), also provide grading reports, though their standards may vary.
When purchasing a diamond, it is advisable to seek one that comes with a reputable certification report, as it offers transparency and assurance about the diamond's quality. For more detailed information about specific certifications and how to interpret them, it can be beneficial to check the current Diamonds On Main website.

Answered Oct 13, 2025
Need further help?
Type out your followup or related question and we will get you an answer right away.
Need to contact Diamonds On Main?
If you need to talk to Diamonds On Main customer service, now that you have the answers
that you needed, click the button below.
Contact Diamonds On Main