The principle contrasts between a Black Diamond and Leopoldi are:
More obscure body tone (Black)
Huge spots should be more white
White spots on the oar balance/spots on claspers
White spots around and in the eyes
Twofold column of little white spots around the plate edge
Dark Diamonds would then be able to be sub-separated into 3 classes
Thousand Island: Has numerous little white spots covering its body with some bigger spots on the center of the circle
Eclipse: Has brilliant white ring formed example encompassing the plate frequently loaded up with dark spots. These special examples frequently structure line and letter shapes.
Huge Spot: Clearly given its name dependent on huge round white spots encompassing the circle of the beam. The example is regularly even albeit each fishes design is special.