Tap the runes you have: the runewords they make now, the ones a rune or two short — with the missing runes marked and whether the rest of your runes can cube them — and the cheapest way up the Horadric Cube's rune ladder to any rune, with the gems each step takes.
Missing runes are marked in red. “Cube the rest” sets the word's own runes aside first and lists the gems the transmutes take.game table
Your stash is 2,448,880,010 Tal short (the equivalent of 1,785,233,527,290 El). The steps above are the transmutes once you have them.
| Rune | Level | Cubed from | Value in El | You have |
|---|---|---|---|---|
| 11 | — | 1 | 0 | |
| 11 | 3 El | 3 | 0 | |
| 13 | 3 Eld | 9 | 0 | |
| 13 | 3 Tir | 27 | 0 | |
| 15 | 3 Nef | 81 | 0 | |
| 15 | 3 Eth | 243 | 0 | |
| 17 | 3 Ith | 729 | 1 | |
| 19 | 3 Tal | 2,187 | 0 | |
| 21 | 3 Ral | 6,561 | 1 | |
| 23 | 3 Ort | 19,683 | 1 | |
| 25 | 3 Thul + Chipped Topaz | 59,049 | 1 | |
| 27 | 3 Amn + Chipped Amethyst | 177,147 | 0 | |
| 29 | 3 Sol + Chipped Sapphire | 531,441 | 0 | |
| 31 | 3 Shael + Chipped Ruby | 1,594,323 | 0 | |
| 0 | 3 Dol + Chipped Emerald | 4,782,969 | 0 | |
| 35 | 3 Hel + Chipped Diamond | 14,348,907 | 0 | |
| 37 | 3 Io + Flawed Topaz | 43,046,721 | 0 | |
| 39 | 3 Lum + Flawed Amethyst | 129,140,163 | 0 | |
| 41 | 3 Ko + Flawed Sapphire | 387,420,489 | 0 | |
| 43 | 3 Fal + Flawed Ruby | 1,162,261,467 | 0 | |
| 45 | 3 Lem + Flawed Emerald | 3,486,784,401 | 0 | |
| 47 | 2 Pul + Flawed Diamond | 6,973,568,802 | 0 | |
| 49 | 2 Um + Topaz | 13,947,137,604 | 0 | |
| 51 | 2 Mal + Amethyst | 27,894,275,208 | 0 | |
| 53 | 2 Ist + Sapphire | 55,788,550,416 | 0 | |
| 55 | 2 Gul + Ruby | 111,577,100,832 | 0 | |
| 57 | 2 Vex + Emerald | 223,154,201,664 | 0 | |
| 59 | 2 Ohm + Diamond | 446,308,403,328 | 0 | |
| 61 | 2 Lo + Flawless Topaz | 892,616,806,656 | 0 | |
| 63 | 2 Sur + Flawless Amethyst | 1,785,233,613,312 | 0 | |
| 65 | 2 Ber + Flawless Sapphire | 3,570,467,226,624 | 0 | |
| 67 | 2 Jah + Flawless Ruby | 7,140,934,453,248 | 0 | |
| 69 | 2 Cham + Flawless Emerald | 14,281,868,906,496 | 0 |
Each rune but El is cubed from the rune below it: three of it from El up to Pul, two from Pul to Zod, and from Amn up one gem as well (chipped, flawed, standard or flawless by the rung). A rune has one recipe, so the cheapest way to a target spends your own runes from the target downwards and cubes a rune only when you have none of it left.
A rune's value in El is what it costs to cube from El alone: the product of the quantities down the ladder (Eld 3, Tir 9 … Ber 3^20 × 2^9). Gems are counted apart.
A runeword is made when every rune of its sequence is in the stash, repeats counted. A word one or two runes short shows the missing runes, and whether the rest of the stash (its own runes set aside) can cube them.
Sources: runes.txt and cubemain.txt of build 3.3.93847 (the rune rows of the Horadric Cube). Nothing here is typed by hand.