"Gold and silver" is called gold and silver in ancient times, just like copper, iron and tin. For example:

The governance of Baling is based on pottery, not gold, silver, copper and tin. (Historical Records of Filial Piety)

Sybil is gold and silver, and all the colors are dazzling. (Han Sima Xiangru's Zi Xufu)

Gold, pearls, jade, gold and silver can't be eaten when hungry, and can't be worn when cold, but expensive ones are also used for the above reasons. (History of Hanshu Food Goods)

Cast gold and silver seals for generals and captains. (Biography of Thirteen Kings of Hanshu)

Its self-support is extremely distinct, and it is dead (no) gold and silver. (biography of Hanwang Gong Liangbao)

"Jewelry" was also called jewelry in ancient times. such as

No hidden (hidden) jewels. (On the Death of a Husband by Wang Fu in the Eastern Han Dynasty)

County does not produce grain, seafood jewelry. (Biography of Officials in the Later Han Dynasty)