This is a very lovely ring.  It was purchased with the intent to use it as an engagement ring.  Unfortunately, it was the wrong size.  The stone is large and well cut, and it is set in the ring very securely.  The reason I deducted a star is because the color change is not what I would expect.  There was little to no green color change in this one (and yes, I was checking it in the correct type of lighting.).

Edit:  After having this for a little while, I can confirm that the color change is not what I would expect from an Alexandrite.  I've owned several other synthetic Alexandrite stones, and they all display lovely tones of green that this one does not do under any lighting situation.  It is still a lovely ring, and a beautiful stone.  For a starter ring or promise ring, it's beautiful and worth the money.