Is the agreement between a young man and his fiancée to bring the jeweler to the house, then return the shabka after a month and pay its rent to the jeweler, considered usury or not, knowing that his marriage depends on it?

It is permissible to rent gold and silver jewelry for a known fee and a known period. It is also permissible to take a pledge (security) to guarantee the return of the jewelry. It is advisable not to exaggerate in dowries and marriage expenses.