At jfkdiamonds we only supply full GIA certificated diamonds and only buy and sell the very best of these from H colour to D colour and from Si2 to Flawless clarity we also make sure all our diamonds have ideal cut proportions with no fluoresence. 

Add one of our hand made engagement rings and there is no one in the world that will be able to supply a better diamond or a better made engagement ring.

Introduction to Diamonds Fluorescence in Diamonds Diamond Weight Diamond Cut Diamond Colour Diamond Clarity