Hoover and Strong Tigold alloy..looks and acts like gold,lasts
without tarnish in sample cases for years,and is quite
inexpensive..there is not another readily available alloy that
performs as well. some master alloys can be used but not without
problems as the strength that the plumb metal lends to the alloy is
missing..So for all around good general yellow gold trials..Tigold is
the anwer..a note - use a bit less of the "additive B" than they
recommend unless you are after an antique gold colour..