Gem Treatment Value Impact Calculator
Calculate price adjustment factors for treated vs untreated gemstones by treatment type and gem species.
Inputs
$
ct
Results
Treated Value
$7,000.00
Untreated Value$10,000.00
Value Difference$3,000.00
Discount30%
Treated $/ct$3,500.00
Market AcceptanceWidely Accepted
How to Use This Calculator
- Enter the Untreated Price Per Carat for the reference gem without treatment.
- Enter the Carat Weight and select the Gem Type: ruby, sapphire, emerald, tanzanite, or aquamarine.
- Select the Treatment Type: heat treatment, oiling, beryllium diffusion, glass filling, or irradiation.
- Review the price adjustment multiplier and Treated Total Value.
- Use the result to disclose treatment impact transparently in gem sales and appraisals.
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