Season 15 Gem Farming: The Efficient Route

DonTheCrown’s 16 September 2026 gameplay video offers a replacement route: with the old gem dungeon nerfed, the World Stone Keep capstone dungeon is faster.

Requirements

• Difficulty: Torment 4 or higher.
• Location: south of Kyovashad, easiest to reach from the Nesque area.
• No key or special item required, so you can reset and re-enter freely.
• The first clear unlocks rank 6 of the season journey.

The route

1. Inside, the first stage is just finding the path away from the central area; it usually sits on the right or along the far wall, and the shape is easy to read.
2. Reaching the upper area triggers the encounter, and all three bosses close in together.
3. Kill them for the payout: royal-tier gems, charms and runes.
4. Reset the dungeon and repeat.

Why it beats the old route

• Shorter. The creator compares it with the farm he used before and calls this clearly faster.
• Steadier. He describes it as dropping “one of each” gem almost every run, where the old route gave a couple.
• Extra value. Charm drops can be rerolled, and the runes feed directly into runewords, covered in the season 15 runeword review.

Soul Splinters are not gems, but they share the slots

While farming gems it is easy to blur two systems: Soul Splinters are this season’s jewellery gems, not the ordinary gems above.

The official list has eight, each tied to a demon or artefact:

Three rules decide how they work:

1. Three at most. They only fit jewellery slots: an amulet and two rings.
2. Every one has a cost. Blizzard’s wording is a powerful boon with a liability attached, so they are not a free equip.
3. Four quality tiers. The same splinter drops at Magic, Rare, Legendary and Unique quality, and higher quality means bigger numbers. Amalgamation in the Horadric Cube combines the same type at the same quality into the next tier up.

In practice, the community hoards low-tier copies and combines them rather than equipping whatever drops. Picking splinters up as you clear dungeons and rifts beats farming for them specifically.

Where the facts stop

This is one creator’s testing, not an official mechanic. Dungeon layouts, difficulty and drops can all change in a later patch.

For Eternal characters, the reply in the comments is blunt: if the dungeon does not exist there, the method does not apply.

The build context is on how to build and the season 15 page.

Sources

• DonTheCrown, “The Most Efficient Way to Farm Gems in D4 Season 15”: source
• Official season 15 notes (season structure, rank rewards and the eight Soul Splinters): source