Taking one artifact from white to red costs 5,100 steel in total. Each row is what that tier costs; the running total is what you have spent since white.
| Tier | Steel | Running total |
|---|---|---|
| White | 0 | 0 |
| White 1* | 10 | 10 |
| Green | 15 | 25 |
| Green 1* | 30 | 55 |
| Green 2* | 45 | 100 |
| Blue | 50 | 150 |
| Blue 1* | 100 | 250 |
| Blue 2* | 150 | 400 |
| Blue 3* | 200 | 600 |
| Purple | 250 | 850 |
| Purple 1* | 300 | 1,150 |
| Purple 2* | 350 | 1,500 |
| Purple 3* | 450 | 1,950 |
| Gold | 550 | 2,500 |
| Gold 1* | 600 | 3,100 |
| Gold 2* | 650 | 3,750 |
| Gold 3* | 650 | 4,400 |
| Red | 700 | 5,100 |
| White to red | 5,100 |