The diamond industry is built on trust, but as a modern luxury consumer, you should demand scientific proof. When you purchase a lab-grown diamond from Clawset Jewelry, you are investing in a highly engineered, mathematically perfect piece of crystallized carbon. To prove the exact value of your investment, every Clawset diamond is accompanied by an independent grading certificate. The two most respected authorities in the lab-grown market are the International Gemological Institute (IGI) and Solitaire Gemmological Laboratories (SGL). Here is how to understand their certifications.
The Anatomy of the Certificate
An IGI or SGL certificate is the blueprint of your diamond. It begins by mapping the exact physical dimensions (the length, width, and depth in millimeters). It then clearly states the precise Carat weight down to the hundredth decimal (e.g., 2.04 carats). Most importantly, it grades the stone on the 4Cs: Color, Clarity, Cut, and Carat. Because Clawset Jewelry specializes in elite luxury, you will consistently see our diamonds grading in the D-E-F (Colorless) range and the VVS1-VS1 (Internally Flawless to Very Slightly Included) clarity range on these reports.
The Crucial Cut Grade
While color and clarity are important, the most critical section of the certificate is the Cut grade (or the Polish and Symmetry grades for Fancy shapes). The cut dictates how the diamond handles light. A diamond with a “Poor” cut will leak light out the bottom and look completely dead, regardless of its color. The IGI and SGL use incredibly strict parameters to evaluate cut. When you see an “Ideal” or “Excellent” cut grade on your certificate, it is scientific proof that your Clawset diamond will produce explosive, blinding fire.
The Security of the Laser Inscription
The final, ultimate layer of security is the laser inscription. Both the IGI and SGL use microscopic laser technology to etch a unique serial number directly onto the girdle (the outer rim) of the diamond. This number exactly matches the report number on your physical certificate. If your ring ever needs to be repaired or cleaned by a third-party jeweler, you can ask them to check the inscription under a microscope before and after the work is done, guaranteeing that your flawless Clawset diamond is never accidentally swapped.
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Every Clawset diamond is IGI & SGL certified. Free worldwide DDP shipping — all duties prepaid. Custom designs available.
