Beyond the Bench: Implementing Activity-Based Costing in the Modern Atelier
Erwee Coetzee
Diamond Stack
Cape Town, South Africa
This is the fifth post in our 8-part series on engineering a jewellery business that prioritises precision over panic. In our last entry, we unpacked the “Visibility Engine” and the “No-Ask Protocol” to clear the mental fog in the studio. Now that we have established a system where we can actually see the work moving, we must address how we value that movement. We are at the midpoint of our journey, moving from operational visibility to the cold, hard mathematics of expertise.
The Mathematics of Expertise: Beyond the ‘Metal and Labour’ Myth
Most jewellery founders price their work using a traditional heuristic: “Metal + Diamonds + Labour + a standard markup %.” While this formula is comfortable and easy to calculate, it is fundamentally flawed for a modern, high-ticket atelier. It assumes that every hour spent at the bench carries the same systemic cost, and that “complexity” is a linear variable. In reality, complexity is exponential, and failing to account for it is why many studios feel “busy” but remain financially stagnant.
Introducing COAGS: The Hidden Tax on Complexity
In my recent research into digital business architecture, I’ve been exploring a concept I call COAGS—the Cost of Algorithmic Goods Sold. In a jewellery context, this refers to the hidden mental and systemic “tax” required to execute complex, non-linear tasks. Unlike a routine re-tipping job, which follows a predictable path, a bespoke multi-gemstone necklace requires a series of high-stakes decisions—or “algorithms”—that consume far more than just bench time.
Every time a goldsmith has to stop and solve a structural problem, they are engaging in expensive cognitive processing. This “algorithmic cost” is rarely captured in a standard labour rate. If you are pricing a complex bespoke piece using the same percentage markup as a simple wedding band, you are effectively subsidising the client’s complexity out of your own profit margin. You aren’t just selling gold and diamonds; you are selling the successful execution of a complex logical sequence.
The Trap of the ‘Simple’ Repair
I recently analysed the workflow of a studio that was struggling with profitability despite a full order book. The culprit was their “repair and alteration” department. On paper, these jobs looked profitable. However, when we applied Activity-Based Costing (ABC)—a method that assigns overhead costs to specific activities rather than spreading them across the whole business—the truth emerged.
A “simple” silver chain repair might only take ten minutes at the bench, but it requires the same administrative “trail” as a R100,000 engagement ring: the intake, the photography, the job card creation, the vault storage, and the client collection. When you account for the systemic friction, that small repair actually cost the business more in “operational drag” than it generated in revenue. In the jewellery world, “simple” is often a code word for “systemically expensive.”
Valuing the Decision, Not Just the Motion
The transition from a “maker” mindset to a “strategist” mindset requires you to recognise that your value lies in your heuristics—the mental shortcuts and expert judgements you’ve developed over decades. Knowing how to set a fragile emerald without it shattering is a high-value heuristic. The physical motion of setting the emerald is the labour; the expertise required to ensure it doesn’t break is the profit.
When we undervalue the “thinking” part of the job, we encourage our teams to focus on speed rather than systemic excellence. Research into industrial psychology shows that when expertise is treated as a commodity, quality inevitably declines. By acknowledging the algorithmic cost of the work, you give your team the permission to slow down and get the logic right, which ultimately reduces costly remakes and reputation-damaging errors.
The Shift to Systemic Pricing
To move forward, we must stop pricing as if we are selling commodities. A diamond in a box is a commodity; a diamond successfully integrated into a bespoke, technically sound architectural piece is a solution. Your pricing should reflect the risk, the decision-making load, and the systemic infrastructure required to bring that piece to life.
This isn’t about being “expensive”—it’s about being sustainable. If your pricing doesn’t account for the COAGS, you are essentially gambling on every complex piece. One minor error in a high-complexity job can wipe out the profit of five “simple” jobs. True business sovereignty comes from knowing exactly where your margin is being eroded by invisible complexity.
Practical Takeaways
- Audit your “Simple” tasks: Identify the low-value jobs that consume high-value administrative time. Consider increasing the minimum “intake fee” to cover the systemic cost of these activities.
- Factor in “Complexity Buffers”: When quoting bespoke work, add a “COAGS” multiplier (10–20%) for pieces involving multiple gemstones or non-standard settings to account for the increased mental load and risk.
- Track the “Admin Trail”: For one week, time how much “non-bench” time is spent on a single job. You might be surprised to find that the “labour” is actually the smallest part of the total time investment.
- Price the Solution, not the Material: Frame your quotes around the successful execution of the client’s vision rather than a breakdown of gold weights.
Mathematics doesn’t lie, but it can be misleading if you are looking at the wrong variables. In the jewellery industry, our greatest costs are often invisible—they live in the decisions we make and the systems we manage. Once you start seeing the “algorithmic” cost of your work, you stop apologising for your prices and start valuing your expertise properly. Next week, we will pivot to the “Technical Foundation”—exploring the digital hygiene required to ensure your studio’s reputation matches its craftsmanship in the eyes of the world.
