The singer - who serves as a coach on the BBC One programme - has experienced an 89% increase in sales of her first album Who You Are since the show began in March.
Fellow coach Danny O'Donoghue has also seen an increase. His band The Script have seen sales of their first two albums rise by 57% over the past four weeks, while Sir Tom Jones's back catalogue has seen a 32% boost in purchases.
will.i.am is expected to release his new album #willpower in the near future, but sales of his group The Black Eyed Peas have climbed 6% since his participation as one of the show's coaches.
"So far Jessie has seen the biggest lift - with sales of her album nearly 100% up on the period before the show started," Gennaro Castaldo, head of press and PR at HMV told The Radio Times.
"It tends to be the performing guest artistes featured on reality TV audition shows that normally steal the headlines and see a lift in sales of their products, but for the first time it's actually the panel of judges on The Voice who appear to be benefiting."
The sales increases come at a time when talent shows on television are a vital tool to promote music across the world.
"For most artists, the only outlet [for high-profile TV promotion] is to go on these shows," Castado added.
"There's no Top of the Pops and many of the biggest light entertainment programmes and chat shows that would once have been part of the promotion circuit have all but disappeared."
> will.i.am beats Jessie J to top The Voice search rankings
> Jessie J debut album Who You Are spawns 12 million record sales
Watch Paloma Faith talk about appearing on The Voice UK below: