Each diamond sold at Solomon Brothers must pass the four Cs for certification: cut, color, clarity, and carat. In this way we ensure that our valued customers are receiving only the very best diamond rings, necklaces, diamond bands, wedding rings, and diamond earrings. Your diamond certification will include an unbiased analysis of your diamond's unique 4C characteristics and a diagram mapping all of its inclusions, which can be very helpful if you ever need to identify your diamond. Our certifications are done by the largest and most respected grading labs: the Geological Institute of America (GIA) and the European Gemological Laboratory (EGL USA). All of our diamonds are rated good, very good or excellent cut; colorless or near colorless, and contain no visible flaws with a grade of SI2 or higher. Each diamond sold by Solomon Brothers is certified by the Kimberly Process to have come from conflict-free sources.