Ordered this in blue sapphire and the stone is flawlessly cut, clear and very pretty, however, it is too big for the setting.  The setting prongs were not firmly attached around the stone and so, it was loose and might fall out.  The setting was okay, but one other thing to note...  The stone is so heavy and the back of the setting is tapered, so the pendant curls forward when wearing, which means the stone is facing the floor.  It would be much better if this setting had the bail attached so that the stone was held diagonally (at the corner).  Or if the setting were squared or flared at the back, not tapered.  I believe it might not curl forward so easily.  One of the problems when buying "sight unseen".  The box cut chain was sturdier than most, but I would still replace with something thicker.  Otherwise, it was a very pretty piece.  I returned for a refund.