Vinegar cannot clean gold jewelry.
How to clean gold jewelry?
The proper method is to dissolve soap in warm water, then soak gold jewelry in soapy water for five minutes, brush gently with a soft toothbrush, rinse with water, and dry with a soft cloth.

Or soak the gold ornaments in salt water for half an hour, and then wipe the surface with a soft towel to restore the original luster of the gold ornaments.