Lapidary Equipment Total Cost of Ownership Calculator
Turn a source-checked machine price into a transparent ownership model using your own setup, maintenance, consumable, electricity, use-frequency and resale assumptions.
Choose equipment from the material and job first—not from the retailer first.
How do you calculate the real cost of lapidary equipment?
Start with purchase price and one-time setup, then add your own electricity, consumables and maintenance assumptions over the years you expect to own the machine. Subtract an estimated resale value only if you choose to model one, then divide by realistic use sessions. Comparing that cost per session with outsourcing can show whether ownership is economically justified.
The cheapest purchase can be expensive to own, and an expensive machine can still be irrational if it is rarely used.
Use source-verified purchase price as the starting point, then enter only costs that apply to your own shop. Electricity is excluded unless you enter both machine draw and your electricity rate. Resale is excluded unless you choose a resale percentage.
Model ownership without fake precision
Select a product and enter your own operating assumptions.
The calculator will separate acquisition, recurring operating cost, modeled residual value and cost per session.
What the calculator includes—and what it refuses to invent
Purchase price
The selected machine starts with the catalog price and source-check date already tracked by the Gear Engine.
Verify again before buyingOperating costs
Freight, electricity, consumables and maintenance vary too much to infer universally, so you control those fields.
No hidden assumptionsResale credit
Residual value is zero until you deliberately enter a percentage. The model never assumes a used-equipment market price.
Conservative defaultOutsource break-even
If you enter a comparable outside-service price, the tool estimates whether ownership can economically overtake outsourcing under your stated use.
Economics, not qualityDirect answers before you buy
Does the calculator include shipping automatically?
No. Freight can vary dramatically by machine, destination and service level, so it is a user-entered one-time setup cost.
Why is electricity zero by default?
Because rated electrical input and local electricity price vary. Enter the exact machine draw from its nameplate/manual and your own electricity rate if energy cost matters to the decision.
Does a lower cost per session mean a machine is better?
No. It means the ownership model is cheaper under the assumptions entered. Capacity, safety, quality of result, workflow fit and evidence still have to be evaluated separately.
Can I compare buying with paying someone else to cut or finish rocks?
Yes. Enter the comparable outsourcing cost per job. The tool estimates a break-even only when ownership has a lower modeled variable cost per job than outsourcing.
Facts are source-checked; recommendations are editorial.
Specifications, current product names and listed prices are checked against manufacturers or official manuals where available.
Product cards show the date the cited specifications or price were last checked. Dynamic prices should be rechecked before purchase.
We do not use “tested,” “hands-on” or equivalent language unless actual testing occurred and can be described.
Affiliate relationships can affect whether a link earns commission, not whether a product fits the task or enters a comparison.
- Gear Comparison Lab — source-verified catalog
- Consumables Planner
Source URLs are retained privately in the editorial database for verification and update checks; Gear content does not publish outbound evidence links.
Editorial method: read the Gear Review Methodology & Evidence Policy. Affiliate relationships: read the disclosure.