Certification
Every diamond we sell carries a laboratory report, and we grade it again ourselves before it goes in the case.
GIA
The Gemological Institute of America, the strictest grader and the one every natural stone we sell is graded by. The report number is laser inscribed on the girdle and you can check it on the GIA site.
IGI
The International Gemological Institute grades most lab grown stones. We accept IGI for lab grown and will send a stone to the GIA on request.
Sourcing
Natural stones come through dealers who comply with the Kimberley Process and sign our own supplier terms. Lab grown stones are grown in the United States and India. Gold is recycled where we can get it, which is most of the time.
What a report contains.
Shape and cut. Measurements to a hundredth of a millimeter. Carat weight to two decimals. Color and clarity. A plot of where the inclusions are. The report number inscribed on the girdle, matched to the stone in your hand.
What we check ourselves.
Weight, measurements and color against the report, fluorescence in daylight, and the cut under a lamp. About one stone in twenty goes back to the dealer.