All our diamonds larger than 0.50 carat come with an independent certificate from GIA (Gemmological Institute of America), GSL (Gem Studies Laboratory) or DCLA (Diamond Certification Lab of Australia), HRD (Hoge Raad Voor Diamant; Antwerp Diamond High Council), IGI (International Gemological Institute) and smaller diamonds can be certified if requested. Diamonds should always be accompanied by an independent certificate to verify all the scientific details of the stones. The person selling you the stone should not be the person who has issued the certificate to ensure an unbiased opinion. There are a large number of different certification laboratories, and whilst they grade to the same standards, their descriptions of these grades can vary. For instance, the highest cut grade used by GIA is called “Excellent”, whilst GSL uses the term “Very Good” for their highest cut grade. This can be confusing, but our diamond experts can lead you through the common pitfalls of purchasing a diamond. Whilst certification is essential, diamonds should not be bought on the strength of the certificate alone. Some certification labs are not as reputable as others, and anything that looks too good to be true, usually is. For all these reasons and more, it is essential to be able to view your diamond before purchase.