All of our diamonds at BigDiamondsUSA are graded by a graduate gemologist, and a Diamond Grading Certificate is provided by United Gem Laboratory. Clarity grades are based on appearance after enhancement. United Gem Laboratory is an Independent Gem Laboratory located in Chicago servicing the local jewelry trade.
With every purchase BigDiamondsUSA provides a Retail Replacement Value Appraisal for your insurance company.
Clarity Enhanced Diamonds are 100% Genuine Natural Diamonds. The principle of the Clarity Enhancement Process is to make small blemishes inside diamonds invisible and to make diamonds affordable for everyone. When diamonds are formed in the earth's crust tiny cracks appear inside the diamond. If the crack is near the surface, and its image is seen by the eye, then this diamond is a perfect candidate for the enhancement process. Through the enhancement process these tiny cracks become nearly invisible to the eye, and the result is a visually more beautiful diamond. The enhancement process is permanent and only fire, boiling acid, or pure ammonia can alter the process. We guarantee the enhancement process in the unlikely event the enhancement is altered we will re-enhance your diamond FREE for life. Enhanced diamonds should be worn and cared for like all diamonds are. Enhanced diamonds as any other diamond make beautiful Engagement Rings, Earrings, Pendants, and more.