The husband of a missing Gold Coast woman will spend at least three years behind bars for raping a teenage girl.

The husband of missing Gold Coast woman Novy Chardon has been jailed for six years for child sex offences.

A jury last month found Gold Coast businessman John Chardon guilty of raping a teenage girl.

The 67-year-old was sentenced to six years in jail in the Southport District Court on Friday.

He will be eligible for parole in three years.

Chardon first groped the then 14-year-old girl in 1998 before raping her and committing other sexual offences in 1999.

His wife Novy Chardon, 34, was reported missing from her Upper Coomera home in February last year.

In March, the Queensland government offered a $250,000 reward for information on the suspected murder of Ms Chardon.

The reward followed the discovery of parts of a white ute believed to be connected to her disappearance after police dug up the backyard of a Gold Coast hinterland home.