Each beautiful engagement rings comes with a grading Certificate or Report from an internationally recognised, independent Gemmological Laboratory.
When looking at the general appearance of fancy diamonds, make sure that the stones are appealing to your eye and that their are bilaterally symmetrical.
Dont be fooled into buying titanium ring that is said to be .25 points. It is NOT a quarter of a carat, and will be so small that it should only be used as accent to other stone or the gold itself.