Frequently Asked Questions
Diamond certification is a document provided by a professional, independent gemological laboratory that details a diamond’s specification, including its cut, color, clarity and carat weight – typically referred to as the 4Cs.
Diamond certification ensures the quality and authenticity of a diamond and guarantees that a diamond has been independently assessed.
With worldwide recognition, the Gemological Institute of America (GIA) is considered one of the most reputable and trusted entities due to its rigorous grading standards.
In many contexts, the terms ‘diamond grading report’ and ‘diamond certificate’ are used interchangeably to refer to the document provided by a gemological lab detailing the quality and characteristics of a diamond. However, it is worth noting a subtle difference; many industry professionals prefer the term ‘diamond grading report’ as it more accurately reflects the document's role: an expert assessment of a diamond's properties. The term "certificate" might imply a guarantee or warranty – but this is not the case.
The GIA's Triple Ex grading is the most highly regarded. It stands for excellent cut, symmetry, and polish.
A true family business, Graff is unique in the world of diamonds. As custodians of some of the world’s rarest and most celebrated stones, the incredible collection of precious gems within its vaults is a testament to the expertise, experience and pioneering spirit of the House, whose reputation for diamond excellence is incomparable.
