Gem Investment Return Calculator
Calculate ROI from gemstone purchase price, appreciation rate, holding period, and transaction costs.
Inputs
$
%
yr
%
%
$
Results
Net Profit
$2,160.00
≈ 17 pairs of sneakers
Total ROI17.3%
Annualized Return1.6%
Future Value$16,289.00
Sale Proceeds$14,660.00
Total Acquisition$11,500.00
Holding Costs$1,000.00
Break-Even Rate3.3%
Total Fees$3,500.00
Break Even FV13,500
How to Use This Calculator
- Enter the Purchase Price and expected Annual Appreciation Rate percentage.
- Enter the Holding Period in years, Buyer's Premium, and Seller's Fee percentages.
- Enter annual Insurance Cost for the stone while held.
- Review Net Profit and Total ROI after all transaction costs are deducted.
- Check Annualized Return to compare gem investment performance against other asset classes.
How the result changes with Annual Appreciation
| Annual Appreciation | Net Profit |
|---|---|
| -6 | -$7,652.00 |
| 4 | $822.00 |
| 16 | $27,203.00 |
| 26 | $78,271.00 |
What each input means
- Purchase Price
- Hammer price or purchase price of the gemstone
- Annual Appreciation
- Expected annual appreciation rate of the gem
- Holding Period
- Number of years you plan to hold the gem
- Buyer's Premium
- Auction house or dealer buyer's premium
- Seller's Fee
- Fee at time of sale (auction commission or dealer margin)
- Insurance/Year
- Annual insurance cost for the gemstone
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersPurchase Price = 10000, Annual Appreciation = 5, Holding Period = 10, Buyer's Premium = 15 = 6 input(s) provided
- Calculate Net ProfitNet Profit2160 = $2,160
- Calculate Total ROITotal ROI17.3 = 17.3
- Calculate Annualized ReturnAnnualized Return1.6 = 1.6
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