How many gems does it cost to go from Town Hall 9 to 12?

Town Hall 9

1. Elixir: 140,847,100 <= not including walls
2. Gold: 220,081,850 <= not including walls
3. Walls: 375,000,000 <= can be a mixture of gold and elixir
4. Dark Elixir: 4,417,500
5. Gems: 505,664
6. US Dollars: 3611 <= Roughly

Town Hall 10

1. Elixir: 215,950,000 <= not including walls
2. Gold: 482,148,000 <= not including walls
3. Walls: 587,500,000 <= can be a mixture of gold and elixir
4. Dark Elixir: 4,100,000
5. Gems: 680,422
6. US Dollars: 4859 <= Roughly

Town Hall 11

1. Elixir: 346,600,000 <= not including walls
2. Gold: 731,805,500 <= not including walls
3. Walls: 1,287,500,000 <= can be a mixture of gold and elixir
4. Dark Elixir: 5,275,000
5. Gems: 1,077,271
6. US Dollars: 7694 <= Roughly

Town Hall 12

1. Elixir: 333,700,000 <= not including walls
2. Gold: 603,030,500 <= not including walls
3. Walls: 500,000,000 <= can be a mixture of gold and elixir
4. Dark Elixir: 5,810,000
5. Gems: 761,233
6. US Dollars: 5437 <= Roughly

Total

1. Elixir: 1,037,097,100 <= not including walls
2. Gold: 2,037,065,850 <= not including walls
3. Walls: 2,750,000,000 <= can be a mixture of gold and elixir
4. Dark Elixir: 19,602,500
5. Gems: 3,024,590
6. US Dollars: 21,602 <= Roughly

Numbers subject to change with new updates and gem discounts. Additionally these numbers to do not include the cost of instant building.