How do you calculate stone setting labor hours?

Divide total stones by the setting rate to get base time, convert to hours, then multiply by one plus the allowance. For 120 stones at 3 per minute with a 15% allowance, that is 40 base hours grossed up to 46 scheduled hours.

What is a realistic stone setting rate?

It depends entirely on setting type. Simple bead or channel work can exceed 3 stones per minute, while micro-pavé or fancy-cut bezels can drop well below 1. The 3 stones/min default suits clean, repetitive melee work.

Why add a sorting and rework allowance?

Raw setting time ignores the minutes spent grading stones to size, swapping chipped goods, and resetting a stone that sits crooked. A 15% allowance turns 40 ideal hours into 46 schedulable hours that match reality.

How long does it take to set 120 stones?

At 3 stones per minute the pure setting work is 40 hours; with a 15% sorting and rework allowance you should schedule about 46 hours of bench time.

Should diamonds and colored stones use the same rate?

No. Colored stones are often softer and more inclusion-prone, so they break and need rework more often. Either lower the rate or raise the allowance when colored goods dominate the job.

Setting rate vs scheduled labor — which do I quote from?

Always quote from scheduled labor, not the base rate. The base time of 40 hours undercharges the customer for the 6 hours of sorting and rework that the bench will genuinely spend.

Jewelry, Watches & Precision Luxury Goods calculator

Stone Setting Labor Calculator

Stone setting labor converts a stone count and a setter's pace into the bench hours a job will actually consume. Setters, bench-shop managers, and estimators rely on it because hand setting is one of the most labor-intensive and skill-gated steps in fine jewelry, and underquoting it eats the margin on a piece. The allowance matters as much as the raw rate: real bench time includes sorting stones by size, replacing chipped goods, and reworking a setting that does not sit clean. Getting this number right keeps quotes honest and bench schedules realistic.

What this calculator does

Estimate the total bench labor hours required for stone setting work on a batch of jewelry pieces. Accounts for the number of stones to set, the average setting time per stone (which varies by setting type: prong, bezel, pave, channel, flush), and an allowance for setup, stone sorting, and minor rework.
Use when scheduling stone setting work for a production order or custom job. Helps bench jewelers and production managers estimate labor hours so they can quote accurately, plan workbench capacity, and meet delivery dates.
It computes scheduled setting labor in hours by dividing total stones by the setting rate and then padding for sorting and rework.

Formula used

Base setting time = total stones to set ÷ setting rate (converted to hours)
Scheduled setting labor = base setting time × (1 + allowance / 100)

Inputs explained

Total stones to set:
Setting throughput per setter:
Sorting and rework allowance:

How to use the result

Use it when quoting a pavé or melee-heavy piece, loading a setter's weekly schedule, or pricing outsourced setting work.
A single average rate hides the spread between fast channel work and slow micro-pavé or bezel setting on tiny stones — split mixed jobs by setting type for accuracy.

Common questions

How do you calculate stone setting labor hours? Divide total stones by the setting rate to get base time, convert to hours, then multiply by one plus the allowance. For 120 stones at 3 per minute with a 15% allowance, that is 40 base hours grossed up to 46 scheduled hours.
What is a realistic stone setting rate? It depends entirely on setting type. Simple bead or channel work can exceed 3 stones per minute, while micro-pavé or fancy-cut bezels can drop well below 1. The 3 stones/min default suits clean, repetitive melee work.
Why add a sorting and rework allowance? Raw setting time ignores the minutes spent grading stones to size, swapping chipped goods, and resetting a stone that sits crooked. A 15% allowance turns 40 ideal hours into 46 schedulable hours that match reality.
How long does it take to set 120 stones? At 3 stones per minute the pure setting work is 40 hours; with a 15% sorting and rework allowance you should schedule about 46 hours of bench time.
Should diamonds and colored stones use the same rate? No. Colored stones are often softer and more inclusion-prone, so they break and need rework more often. Either lower the rate or raise the allowance when colored goods dominate the job.

Last reviewed 2026-05-12.