They are currently in my tank and came from Mike with H20 as Black Diamonds. I have standard leo's and these are not the same. Although I don't consider these nice black diamonds- I also don't consider these Leo's. I used a 3 mega pixel camera to quickly snap a photo so Mrdee would know exactly what I was referring to when I said I didn't consider them special rays.
I am not sure what the "official" technical details are for a True BD but this is what he sent and represented as Bd's.