CZ Pink konzite, 5,25 carat, 10x10mm. What is CZ? CZ Sapphire stands for , this is not a genuine Sapphire , but a sham . The stone is still a genuine gemstone , the formula is not the same as a true sapphire. This is a gem of high character , and looks like a Sapphire so much that it almost can be difficult to see the difference.