When you're looking for a diamond that's truly flawless, look for an IF or FL clarity grade. Internally flawless (IF) diamonds are free of inclusions under 10x magnification, but they may contain some surface blemishes. A flawless (FL) diamond shows no inclusions at 10x, and they’re very rare—fewer than 1% of all diamonds receive an FL clarity rating. Flawless diamonds are incredibly rare, because most diamonds feature naturally occurring inclusions. IF and FL are the top tiers of clarity grade, each accounting for just six percent of diamond sales.
All of the 4Cs contribute to the final price of a diamond. Of these, carat weight plays the biggest role, but choosing a diamond with an IF or FL grade will definitely increase its price, since it’s so rare.
IF vs. FL: Which is the better value?
The value of a diamond depends on factors like cut, color, and carat. While both IF and FL diamonds are valuable, which you choose should depend on your preferences and your budget.
Is the diamond's clarity grade included on the GIA grading report?
Yes. Not only is the clarity grade included in the report, but there's also a map that will indicate the location of any internal or surface inclusions.
What are "eye clean" diamonds?
When a diamond is called "eye clean," it means the inclusions are so minor, they can't be seen without magnification.
Do some shapes hide inclusions better than others?
Yes. Any diamond with a brilliant-cut pattern, such as round, princess, pear, heart, and marquise, will hide blemishes better than the other fancy shapes, such as Asscher and emerald.