Value-preserving wgy pure gold: gold with a gold content equal to or greater than 99%, commonly known as "Erjiu Gold". The mark is "pure gold", "99 gold" or "G99".

Thousands of pure gold: gold with a gold content equal to or greater than 99.9%, commonly known as "Sanjiu Gold". The logo is "Thousand Gold", "999 Gold" or "G999".

So thousands of gold is definitely pure gold, but pure gold is not necessarily pure gold.

The gold content is high, that is, the gold content is 99.99%, commonly known as "49 gold". Generally, "49 gold" is rarely used as gold jewelry, and the gold bricks in the vault are all 49 gold, each of which is 5 kg.

There is a difference between pure gold and thousands of pure gold. But after making jewelry, many stores have the same price, and some stores are a few dollars short (thousands of gold is a little more expensive).