Is it permissible to pay a craftsman a partial sum for the purchase of raw gold to make jewelry, with the remaining amount to be paid upon receipt?

It is permissible to give raw or manufactured gold to a jeweler for shaping or re-shaping in exchange for a specific amount. However, purchasing gold from a jeweler at an installment price, where part of the payment is upfront and part is deferred until the jewelry is received, is not permissible.