The crafting economy in Lineage 2 has always been complex, but few systems are as misunderstood as C-grade crystal production. While D-grade crystals follow a straightforward path, C-grade requires a completely diferent approach that catches many players off guard.

The C-Grade Crystal Mystery

Unlike D-grade equipment, you won't find C-grade items sitting in the weapon shop waiting to be purchased and crystallized. The weapon shop exclusively sells D-grade weapons, which creates an interesting problem: how do you obtain C-grade crystals when there's no C-grade equipment to crystallize?

The answer lies in a mechanic that many players overlook entirely – the dual weapon system.

The Jeweling Solution

The secret to C-grade crystal production involves visiting the blacksmith in Giran with two D-grade swords. These should be either pre-top D-grade weapons from the shop or the top D-grade weapons available (remembering that "top" refers to the best availabe in the shop, not necessarily the best obtainable in the game).

Here's how the process works:

The blacksmith combines your two D-grade swords into a C-grade dual weapon. You'll need to pay D-grade crystals (purchasable from the shop) plus some adena. If there's a castle owner, this includes a tax – essentially a castle tax on the transaction.

The beauty of this system is that the power level of your dual weapon doesn't matter at all. Even the lowest available D-grade swords will produce a C-grade dual weapon when combined. What matters is the grade itself.

Once you have your C-grade dual weapon, you can crystallize it to obtain C-grade crystals. This is currently the primary method for acquiring C-grade crystals in the game.

Crafting Spirit Shots and Soul Shots

With your C-grade crystals in hand, you can begin crafting C-grade soul shots and spirit shots. You'll need to be level 40 for this crafting process, and you'll need the appropriate recipe for each type (these recipes are either purchasable or obtainable through gameplay).

The crafting process itself requires both crystals and shots. Specifically, you'll use C-grade soul shots and spirit shots during the crafting process, which means the grocery shop also takes a cut through taxation.

C-grade spirit shots are particularly valuable. They're among the most popular items on the market and consistently rank as some of the best-selling consumables. The spirit shots especially maintain strong demand across the server.

The Luxury Shop Connection

The complexity doesn't end with basic C-grade crystal production. Giran town features a luxury shop that sells C-grade items that you won't find in the regular weapon shop. However, even when purchasing from the luxury shop, you still need C-grade crystals for various transactions and crafting requirements.

This creates a perpetual market for C-grade crystals. Players can produce C-grade crystals through the jeweling method and sell them directly – often right outside the luxury shop where demand is highest. The same applies to D-grade crystals, which maintain their own market value.

Understanding the Broader Market

Here's a crucial point that many crafters miss: crystals aren't just intermediate materials for making spirit shots. They're valuable commodities in their own right. D-grade crystals, C-grade crystals, and the shots themselves all occupy distinct positions in the server economy.

Smart crafters recognize that sometimes the most profitable move isn't crafting shots at all – it's selling the crystals directly to other players who need them for luxury shop purchases or their own crafting projects.

The jeweling process for C-grade crystals might seem convoluted at first, especially compared to the straightforward D-grade crystal production. However, once you understand the system, it opens up multiple revenue streams. You can sell the dual weapons themselves, crystallize them for C-grade crystals to sell, or use those crystals to craft high-demand spirit shots.

Market Positioning Strategy

The key to success in this market is understanding the full chain of value. Each step in the process from D-grade swords to C-grade spirit shots represents a potential profit point. Whether you're buying low-cost D-grade weapons, combining them into dual weapons, crystallizing for raw materials, or crafting finished products, each stage has its own market dynamics.

Players who master this system often find themselves in a privileged position within the server economy. They can respond to market fluctuations by shifting their focus along the production chain – selling crystals when crystal prices spike, or crafting shots when crystal supply is high but finished product demand remains strong.

The taxation system adds another layer of strategy. Castle taxes on blacksmith services and grocery shop taxes on shot materials mean that production costs fluctuate based on server politics. Savvy crafters track these changes and adjust their operations accordingly.

For players serious about crafting in Lineage 2, understanding C-grade crystal production through jeweling isn't optional – it's essential. This knowledge separates casual crafters from those who genuinely influence server economies and maintain consistent income streams regardless of market conditions.