Diamonds used in jewelry are Precious. other diamonds are not even semi-precious
It is jewelry with looks silver, but isn't really made of that precious metal.
Most if not all of PS Co jewelry is paste jewelry, ie, non-precious or semi-precious gems were used
Jewelry is probably it.
Fine jewelry can have real gold, diamonds, pearls and lots of other valuable jewelry items. Regular jewelry can have fake gold and diamonds that are not as expensive and valuable.
precious collection
NAICS Code 339911 (Jewelry (including Precious Metal) Manufacturing)
For "precious" as in "precious jewelry": 珍貴 Zhēn guì / 寶貴 Bǎo guì For "precious" as in "precious darling/lover": 愛人 Ài rén
PMS on jewelry typically stands for Precious Metal Stamp, indicating the type of metal used in the piece, such as gold or silver. It helps verify the authenticity and quality of the metal used in the jewelry.
339911
those establishments primarily engaged in manufacturing jewelry and other articles worn on or carried about the person, made of precious metals such as platinum, gold, and silver
NAICS Code(s) 339911 (Jewelry (including Precious Metal) Manufacturing)