An Israeli jewelry company is working on what it says will be the world's most expensive coronavirus mask: a gold, diamond-encrusted face covering with a price tag of $1.5 million. The 18-karat white gold mask will be decorated with 3,600 white and black diamonds and fitted with an N99 filter at the request of the buyer, said Isaac Levy, designer and owner of Yvel company. Levy said the buyer had ...