Diamond

Diamond is a refined crafting material produced by further smelting Energetic Graphite, or by smelting Kimberlite Ore from a rare vein. It is a very hard crystal formed by changing the structure of graphite under strong pressure and heat, and is one of the game’s key mid- to late-game industrial materials.

In practice, Diamond sits in a narrow but important set of production chains. Its demand is concentrated in a few high-value recipes, so a small but stable supply is usually enough until advanced production begins to scale up. Unlike many basic intermediates, both of its main source materials are useful in other chains as well, so Diamond production must be planned around broader factory throughput rather than isolated output.

A single Smelter making Diamond from Energetic graphite is enough to support 4 Matrix Labs producing Structure matrix, or 1 Assembling Machine Mk.I producing Graviton lens. Diamond is also required for Proliferator Mk.II, which makes it relevant outside of science and lens production. Once production reaches the point where Universe Matrix is being used, Coal consumption becomes significant, making Kimberlite ore a valuable supplementary source of Diamond.

• Main production methods:
  • Smelting Energetic graphite into Diamond
  • Smelting Kimberlite ore into Diamond
• Diamond production can only be handled by smelting, not by the player’s hand-crafting queue.
• The recipe set is small, but the item is in high demand because its downstream uses are concentrated in important progression items.
• If Energetic graphite demand is already high, Kimberlite ore can reduce pressure on Coal-based supply lines.
• Diamond is part of the progression path toward Structure matrix, Graviton lens, Proliferator Mk.II, and later Universe Matrix-related production.

Because Diamond is made from Energetic graphite, it often competes indirectly with other Coal-derived industries. Early factories can usually rely on a graphite-based line, but expanding science and lens production quickly pushes demand high enough that dedicated Diamond smelting becomes worthwhile. When Kimberlite ore is available, incorporating it into the supply chain helps preserve Coal for other uses and smooths out late-game material shortages.