Biggest Gold reserves in the World - Central Banks, jewellery and private holdings.UPDATED

(See updated link with the ultimate graphic of how much gold there is and who has it.)

Tonnes of gold for top 30 countries:  (Wikipedia)

       Jewellery (especially in India) accounts for over half of all the gold in the world.

Privately held gold (another 2000 tonnes):

Link:  Where is US Treasury gold? The Army has custody of all 261 million ounces.