The Standard of Absolute Trust

Independent third party certifications are the cornerstone of trust, pricing equity, and complete transparency in the global fine jewelry market. To guarantee this transparency, Diamos partners exclusively with the International Gemological Institute (IGI). Operating twenty nine state of the art laboratories globally, IGI stands as the undisputed global authority in diamond grading. By leveraging their robust and unbiased scientific methodologies, we provide authoritative and comprehensive validation for each and every loose diamond and finished piece of jewelry in our collection.

However, we at Diamos, go a step beyond. While an official IGI certification provides an essential baseline of trust, it is imperative to understand that a grading report tells only part of the story. In the field of gemology, a specific color or clarity grade represents a spectrum rather than a singular, identical metric. Consequently, two diamonds holding the exact same certification can often exhibit noticeably different visual characteristics when seen in real life.

0 Global IGI Laboratories

0 % Independently Certified

IGI Verified Partner

we look far beyond the certificate

At Diamos, we look far beyond the certificate. Before any stone is selected for our creations, it must pass a rigorous manual assortment process. Our gemologists meticulously evaluate each diamond, hand selecting only the absolute pinnacle of stones within their given grade. By vetting for true visual performance and strictly rejecting the lab grown diamonds that fall on the weaker end of their grading spectrum, we guarantee that your chosen stone possesses an undeniable, commanding brilliance that numbers on a page simply cannot capture.

Certified Grade Range

Diamos selects here

Weaker Commanding brilliance

The Diamos Certification Protocol

Every diamond we set, from a delicate accent stone to a monumental centerpiece, is rigorously evaluated and fully certified by IGI. To provide the most reliable and comprehensive documentation for your investment, our certification protocol is tailored to the exact carat weight of the diamonds featured in your bespoke jewelry.Depending on the jewellery selected by you, your certification will fall into one of three categories:

01 / 03

Designs Featuring Diamonds Under One Carat

For jewellery where in all individual diamonds weigh under one carat each, you will receive an official IGI Diamond Jewelry Report. This highly secure document verifies the authenticity and exact quality metrics of your piece, including the total carat weight and the precise Four Cs.
Maintaining our unyielding standard of visual purity, every lab grown diamond under one carat at Diamos is strictly graded at E and F color, accompanied by VVS to VS clarity.
To ensure impenetrable security, a unique IGI report number is physically engraved directly onto your finished jewelry.

ColorE – F

ClarityVVS – VS

SecurityReport No. Engraved

02 / 03

Designs Featuring Diamonds One Carat and Above

For jewellery featuring only lab grown diamonds weighing one carat and above, optical characteristics are highly visible and comprehensive gemological precision is paramount. Therefore, you will receive the IGI Full Diamond Grading Report. This extensive document provides deeply nuanced details, including anatomical proportions, physical measurements, and a highly precise clarity map.
For uncompromised security, the unique IGI report number is microscopically laser inscribed directly onto the girdle of the diamond itself.

DetailProportions & Clarity Map

MeasurementsIncluded

SecurityGirdle Laser Inscribed

03 / 03

Designs Featuring a Convergence of Carat Weights

Should your jewelry feature a combination of lab grown diamonds both over and under 1 carat, you will receive a Complete Suite of Documentation. You will receive the Full Diamond Grading Report for every diamond above one carat, alongside the Diamond Jewelry Report for the setting and smaller stones. For ultimate transparency, the jewelry report will explicitly reference the unique certification numbers of the larger centerpiece stones, providing a seamless record of your entire purchase.

Above 1ctFull Grading Report

Under 1ctJewelry Report

Cross-ReferenceLinked Certificate IDs

Every Stone. Verified Twice.

First by IGI's independent laboratories, then by our own gemologists — because a certificate is only the beginning of trust.

Digital Authentication and Verification

Verify Every Certificate, Directly at the Source

To completely eliminate the possibility of certificate alteration and ensure total peace of mind, every official IGI report is digitally synchronized with their central global registry. We actively encourage our clients to execute a rigorous verification workflow prior to finalizing their purchase