DK. Tanzanite grading "Ultra Delux"

[Blue star]

i was watching the "one collection " with Don at the weekend i like Don and have done since his days at gems with steve bennett but he was going on and on about ultra delux tanzanite being the best of the best so what about quad A i thought that that was the best that was mined im unsure about this grading system i wonder if this ultra delux is just a grading that rocks and co is using like the parabia apaitie and the hot pink sapphire etc used on other channels i have never heard ultra delux being used on any other jewelry channel for tanzanite but i must admit the tanzanite jewelry he showed was lovey