I saw that and figured it was a pale topaz or a morganite or something. There are a few bees with massive stones that are a light morganite, etc.
I think the biggest ering diamond I have seen in the forums I hang around was like a 9ish ct on PS, but that girl had like multiple pairs of 6-8+ctw studs too, ha ha.
It is definitely too much for me to ever wear, though!