What is fine-weight valuation? (and why gross weight hides your real value)
In short
Fine-weight valuation values precious-metal inventory by its pure-metal content — gross weight × purity — priced at the live market rate. It is more accurate than gross-weight tracking because precious metals are sold per gram of fine metal, so fine weight is what actually determines the money on your shelf.
Gross weight vs fine weight
Every scale reads gross weight: the total alloy weight of a piece. But a 22-karat gold item is only about 91.6% pure gold; the rest is alloy. The pure-metal portion is the fine weight, and it is the only part that carries market value.
Because gold, silver and platinum are priced per gram of fine metal, valuing inventory by gross weight overstates alloy and obscures what you truly own. Fine-weight valuation removes that distortion.
How fine-weight valuation works
The calculation is simple but has to run across every item, stage and location:
- Fine weight = gross weight × fineness (e.g. 916/1000 for 22K).
- Inventory value = fine weight × live price per gram of fine metal.
- Apply it to raw bullion, work-in-progress and finished stock — at every karat and metal.
Why it matters for finance
When inventory is valued on fine-metal content at live prices, the balance sheet finally matches the factory floor. You can see how much capital is genuinely tied up, compare it against demand, and identify the stock where value is sitting idle.
Gross-weight systems can't do this: two items of equal gross weight but different purity look identical, even though their real value differs sharply.
How AurumOS applies it
AurumOS computes fine weight from purity and net content for every lot, then prices it at live market rates — automatically, across vaults, workshops and production stages. That fine-weight foundation powers everything else: working-capital intelligence, procurement recommendations and board-ready reports.
Frequently asked questions
- Is fine weight the same as net weight?
- Not exactly. Net weight usually means the item's weight excluding stones or findings; fine weight is the pure precious-metal content (net weight × purity). AurumOS works from fine weight for valuation.
- Does fine-weight valuation need live metal prices?
- Yes — fine weight gives you the quantity of pure metal; multiplying by the live price per gram gives the current value. AurumOS combines both automatically.