Face down I would say the color is rather high. You can clearly see the yellow tint in the stone. It appears higher than J. Also I would say that’s an emerald step cut. Also, in order to diagnose the stones clarity you need a 10x triplet loupe. If your using just your unaided eye, it could be an SI1. Anything above SI2, you’ll have a hard time seeing any inclusions with the naked eye. Best of luck.