Is Zakat obligatory on gold designated for adornment, and if so, can the husband pay and itemize it, and how is its value calculated for the past ten years in the event that the wife had no private income?

If the wife intends to use the jewelry, even if occasionally, then according to the majority of scholars, there is no zakat on it. However, if her intention changes from usage to acquisition or saving, or if she has no specific intention for it, then zakat becomes obligatory on her according to the majority of scholars. Zakat becomes obligatory if the gold reaches the nisab (approximately 85 grams of pure gold) for all the years in which her intention was not for usage. The zakat must be given from the gold itself, or its value in cash at the price of gold at the time of paying the zakat. Zakat is obligatory upon the wife, and the husband is permitted to donate its payment on her behalf. Zakat must be paid promptly once it becomes due.