What a gorgeous quilt! I once had a lipstick go through the wash and dryer and I asked the housekeeper of an elderly gentleman that I took care of what to do and she told me to put the clothes in a plastic bin with oxyclean and water and leave it be for a week, just opening it once each day and agitating it. I was amazed to find that after the week went by the lipstick was gone. Maybe This would work for your quilt.