Jewellery retailer Lovisa has reaffirmed its full year earnings guidance after lifting first half profit by two thirds.

Lovisa, which listed on the ASX in December, made a net profit of $12.3 million for the six months to December 31 which, it said, was 66 per cent higher than it recorded a year ago.

Revenue was up 33 per cent on its 2014 first half and the company reaffirmed its prospectus forecast for a full year net profit of $16.4 million.

AAP