I once saw a bee that was nearly as bright at that GTP. Adult female bee, around 2000 grams. Her back was solid yellow, her stomach gleaming white, her pattern the blackest of black. There was not a stray speckle of black, tan or grey anywhere on her.
She was hands down the most amazing bee I have ever seen, and if I had $3000 she would have been my bee. Unfortunately, I don't and I've never seen her or one like her since then.
Gale