At least 10 different important factors determine the value of a diamond. Although “4 C’s” are the first things that you check, but there are 6 more parameters (equally important) that you have to look into before you close the deal.
Diamond may not always be the best choice. If you think Dafina One Carat diamond rings are out of your budget range, then the best choice could be a Dafina One Carat blue or pink sapphire for your engagement ring.
Because spotting the differences in diamonds even under microscope could be very tricky and time consuming, and many people could have different opinions about the same diamond's quality, also to make the buying and selling of diamonds easier under a set of agreed standards, a reporting system, or in other words, a certification document is needed.