how to create gold in lab?

Answer 1

It can be done but the cost of doing it is more than the value of the gold.

http://chemistry.about.com/cs/generalchemistry/a/aa050601a.htm

Answer 2

You can't "create" gold atoms in a lab unless you use particle accelerators, such as the Cyclotron which only universities and companies can and bother to afford, or by using any other form of nuclear reaction. (None of this can be done at a home or high school lab.)

It would be less costly and easier to extract the gold from a chemical already containing gold, but the original chemical containing gold would cost more than the extracted gold, and getting hold of the chemical & running the reaction would be much more trouble than just getting the gold as it is.

You might want to research on Alchemists, because the exact question you are asking was their ultimate life work.

Answer 3

It can be done by nuclear change. By adding or removing of protons in nucleus.

It is much more expensive than gold.

The gold so produced is radio active and can kill the one who wears it.

Answer 4

Try making fool's gold instead