3.5 stars, but definitely not 4 stars.  I have never been a person into celtic designs but really like this piece.  I wear this ring twice a week.  I agree with one reviewer that it can look like costume jewelry, but we get what we pay for since it is a lab grown stone.  The name "genuine blue sapphire ring" is very deceiving and I was almost tempted to give 2 stars for this reason alone.  Real sapphire can cost up to hundreds and thousands of dollars so I am still happy with this find.