You are kindly requested to answer the following questions received from one of my brothers in Islam: What should be the payment of any gold and silver product? There is a company selling pure gold products (99.99%) and offers the following payment plans:a) Full payment plan - product will be shipped within two weeks.b) Partial payment plan - initial payment is 52%, balance 48% later without any interest, and then product will be shipped after receiving full cost. (Example: total cost of a golden coin is 830. Initial payment (52%) is 430 and the balance is 400).

Praise be to Allah, the Lord of the World; and blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.
Both payment plans are unlawful as in both the customer does not receive the gold he bought except after a period of delay and it is a condition in Islam that buying gold with currencies must be from hand to hand.
So, delaying the supply of the gold makes the transaction unlawful in Islam.
Allah knows best.