There is a reason why jewelry is considered precious and buying jewelry is an investment, not an expense. The simple reason is the return on investment. Jewelry, especially those made of gold, diamond, silver, platinum and other valuable gemstones, can be resold for a profit.
They can also be pawned or pledged as security to get a short-term loan. Rare and exorbitantly expensive jewelry can be used as security for substantial long-term loans. Throughout recorded history, jewelry has been one of the most common assets of royalties, the wealthy and the industrious.