This is a 1.18 carat yellow sapphire. It measures 6.15 mm x 4.12 mm. I really don't think it is a color changer, but it has green around the edges with yellow and a little orange in the middle. I t does change in certain lighting, but normally is yellow. It is valued at 590.00, so I am asking 300.00 for it. It came from the Eldorado deposit as well. It is vs in clarity and will make a very nice piece of jewelry. Whoever buys it will certainly get a nice sapphire that they will cherish.