Diamonds are a high-value crafting material in Subnautica 2. They are used for the knife upgrade, laser cutter, reinforced dive suit, and several advanced modules. Because diamond recipes are expensive and you need several throughout the game, knowing the best farming spots is essential. This guide lists the most reliable diamond locations.
Why Diamonds Are Important
Diamonds are a high-value crafting material in Subnautica 2. They are used for the knife upgrade, laser cutter, reinforced dive suit, and several advanced modules. Because diamond recipes are expensive and you need several throughout the game, knowing the best farming spots is essential. This guide lists the most reliable diamond locations.
Top Diamond Locations
1. Mountain Island Caves
The same caves that hold Lithium on the mountain island also contain diamond ore. The dark, branching tunnels have diamond nodes on the walls. Bring a flashlight and a scanner to identify them. This is the safest early source.
2. Sea Treader's Path
Sea Treaders churn the seabed as they walk, kicking up resource chunks including diamonds. Follow the Sea Treader path at mid-depth and collect the loose resources they leave behind. This is a renewable, low-risk farm.
3. Lost River and Deep Caves
Deeper caves in the lost river contain diamond deposits that yield multiple diamonds each when drilled. Use the Prawn Suit drill arm for maximum yield.
4. Lava Zone Caves
The inactive lava zone has diamond deposits but is extremely dangerous due to Sea Dragon Leviathans. Only go here with a fully upgraded Prawn Suit.
Depth and Tool Requirements
| Location | Depth | Tool | Risk |
|---|---|---|---|
| Mountain Island Caves | 0-50 m | Hand pickup | Low |
| Sea Treader's Path | 200-300 m | Hand pickup | Low-Medium |
| Lost River Caves | 500-900 m | Drill arm | Medium-High |
| Lava Zone | 1200+ m | Drill arm | Very High |
The Sea Treader Renewable Farm
The most efficient long-term diamond farm is the Sea Treader's Path. Sea Treaders walk a fixed route and excavate the ground, spawning random resource chunks including diamonds, lithium, and gold. Build a small base or park your Seamoth nearby, then follow the herd and scoop up the chunks. The chunks respawn continuously, so you can collect diamonds indefinitely without diving deep.
How to Identify Diamond Ore
Diamond ore nodes are small, white-blue crystalline formations on cave walls and the seabed. They look similar to quartz but have a sharper, more translucent appearance. Scan unfamiliar nodes to confirm they are diamonds before mining. On the mountain island, check the darkest corners of the cave system where other resources do not spawn.
What to Craft with Diamonds
- Laser Cutter: required to breach sealed doors in wrecks.
- Reinforced Dive Suit: reduces damage and heat.
- Thermoblade: upgraded knife that cooks fish on hit.
- Hull Reinforcement Module: extra vehicle durability.
More Subnautica 2 Guides
- Best Cooked Recipes for Hunger and Water Restoration in Subnautica 2
- Where to Find Rubies and Gel Sacks in Subnautica 2
- Subnautica 2: All Dangerous Creatures & How to Avoid Them
- How to Unlock the Prawn Suit and Upgrade Arms in Subnautica 2
- Where to Find Lithium in Subnautica 2: Best Mining Locations
- Subnautica 2 Scanner Room Guide: Surveying & Resource Detection