I've been hesitant to add Lab Grown Yellow diamonds to the site, because most are brassy...
This one looks like a Natural Vivid Yellow, in my opinion.
I'm also partial to emerald cuts, and this one is beautifully cut, so there's that.
Super clean - VVS2 in clarity
I'm thinking of a ring with a pair of colorless emerald cut sides... or halo...what do you think?