The purity of light shadow gold and 999 gold is the same, that is to say, the materials used in light shadow gold and 999 gold are pure gold in the conventional sense.
At present, there is a unified standard in the gold industry. The labels of pure gold and thousands of gold are marked with pure gold, but in fact, the gold content of pure gold and thousands of gold is different.
If the gold content is above 90%, it can be turned into pure gold. Only when the gold content reaches 99.99% can it be called thousands of gold.