Gem Parcel Pricing Calculator
Calculate per-carat price for calibrated and uncalibrated gem parcels based on size, quality, and count.
Inputs
ct
$
Results
Total Parcel Value
$7,500.00
≈ 8 smartphones
Adjusted $/ct$150.00
Per-Stone Value$300.00
Avg Stone Size2 ct
Parcel TypeCalibrated
QualityCommercial
Size Premium Factor1.2
How to Use This Calculator
- Enter the Total Carats and Number of Stones in the parcel.
- Enter the Base Price Per Carat for the gem type and quality level.
- Select the Parcel Type (calibrated matched sizes vs uncalibrated mixed sizes).
- Select the Quality Grade: premium, commercial, or low grade.
- Review Total Parcel Value, Adjusted Price Per Carat, and Per-Stone Value for trade negotiations.
How the result changes with Total Carats
| Total Carats | Total Parcel Value |
|---|---|
| 1,001 | $250,250.00 |
| 3,501 | $875,250.00 |
| 6,500 | $1,625,000.00 |
| 9,000 | $2,250,000.00 |
What each input means
- Total Carats
- Total carat weight of the parcel
- Number of Stones
- Total number of stones in the parcel
- Base Price/ct
- Base market price per carat for this gem type
- Parcel Type
- Whether stones are size-matched
- Quality Grade
- Overall quality grade of the parcel
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersTotal Carats = 50, Number of Stones = 25, Base Price/ct = 100, Parcel Type = 0 = 5 input(s) provided
- Calculate Total Parcel ValueTotal Parcel Value7500 = $7,500
- Calculate Adjusted $/ctAdjusted $/ct150 = $150
- Calculate Per-Stone ValuePer-Stone Value300 = $300
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