The white grape variety (also short Emerald = emerald) is a new breed between Emperor x Sultana Moscata ( Muscat d'Alexandrie x Sultana ). The crossing took place in 1939 by Dr. med. Harold P. Olmo (1909-2006) at the California University of California, By the way, with the same parents is also the new breed Ruby Seedless emerged. She was crossing partner in the variety marquis, The seedless Variety is called Kelter- and table grape used. No stocks were reported in 2010 (Statistics Kym Anderson ).