Platinum is Lesser X Daddy Gene. The Daddy gene is found in the Lesser and normal sibs produced by a Platinum X Normal pairing. Pairing a Lesser with Platinum in its lineage to a normal sibling with Platinum in its lineage may give you Platinum. Breeding a Platinum to a Lesser carrying the Daddy gene may also give you platinums, lessers, BELs, and normal carriers...it's complicated.

All Lessers derive from the original Platinum "Platty Daddy", to the best of my knowledge.

That having been said, that is one seriously smokin' Lesser.