How do I repair a scorched veil?

My MIL still has her 40+ yr old veil. I would love to wear it for my wedding in October but it was in a house fire about 10 years ago & it's turned yellow in parts. I took it to a bridal restoration shop & they said they can try to restore it but if it's scorched it will stay yellow. It's tulle, it's a perfect length, it goes perfect with my dress & it's something old as well as something borrowed! Please help?! Can tulle be repaired from scorching?