Royal Gem

Level	Damage per second	Upgrade cost	Blacksmith	Town Hall
1	35	–	1	8
2	40	120	1	8
3	45	24020	1	8
4	50	400	1	8
5	55	600	1	8
6	60	840100	1	8
7	65	1,120	1	8
8	70	1,440	1	8
9	75	1,800200	1	8
10	80	1,900	3	10
11	85	2,000	3	10
12	90	2,100400	3	10
13	95	2,200	5	12
14	100	2,300	5	12
15	105	2,400600	5	12
16	110	2,500	7	14
17	115	2,600	7	14
18Max at TH18	120	2,700600	7	14

From level 1: 27.3K shiny ore, 1.9K glowy ore to max at Town Hall 18.