There are recorded and present day reasons:

Gold is non-receptive with different synthetic compounds so it holds its shading. However silver darkens, which has undesired impacts.

Gold has a unique colour which makes it different from all other metals So individuals are enamored with it and this has made more interest for it.

Gold is rarer than silver and this is the primary reason. At the point when there is less supply of something and higher request on it, at that point the cost will be higher.

Additionally in light of the fact that there are much more silver than gold on earth. Overall, silver exists at a 17:1 proportion versus gold in the World's covering.