Resale Price History
Average price of a Koch piece of jewelry
Average Price 2025
$4,271
+8.5% from 2024
Koch Price History
What is the average price of a Koch piece of jewelry?
As of 2025, the average resale price for a Koch piece of jewelry is $4,271, based on 33 verified sales from auction houses and marketplaces including Christie's, Sotheby's, Phillips, and more.
Key Facts
- 2025 Average Price: $4,271
- Total Verified Sales: 33
- Data Coverage: 2004 to 2026 (10 years)
- Sources: 5+ auction houses and marketplaces
- Year-over-Year Change: +8.5%
Koch Resale Statistics
Total Sales
33
Average Price
$21,263
All-Time High
All-Time Low
First Sale
Vendors
🔒 4 more statistics available
Recent Koch Sales
Frequently Asked Questions
What is the average price of a Koch piece of jewelry?
The average resale price for a Koch piece of jewelry in 2025 is $4,271. This figure is calculated from 33 verified sales recorded in the Alt/Finance database.
How many Koch jewelry pieces have sold on the resale market?
A total of 33 Koch jewelry pieces have sold on the resale market since 2004, across 5 different auction houses and marketplaces globally.
Is the Koch a good investment?
Investment performance varies by specific reference, condition, and market timing. Historical resale data can help inform investment decisions, but past performance does not guarantee future results.
Where is the price data sourced from?
Alt/Finance aggregates resale data from 5+ sources including auction houses (Christie's, Sotheby's, Phillips, Bonhams, Antiquorum) and online marketplaces.
How often is the data updated?
Price data is updated weekly. This page was last updated on 2026-02-25.
What is the price trend for Koch jewelry pieces?
Koch prices have shown positive movement, with a +8.5% year-over-year change. The dataset covers 10 years from 2004 to 2026, allowing you to identify long-term trends and seasonal patterns.
What is the all-time high price for a Koch piece of jewelry?
All-time high and low prices for Koch are available to Alt/Finance subscribers. Our database tracks detailed price extremes across 33 verified transactions from 5+ auction houses worldwide.
How to Use This Data
Collectors use Koch price history to assess fair market value before buying or selling. Investors analyze year-over-year trends to evaluate appreciation potential. Appraisers and insurers reference verified auction results for accurate valuations. All data points come from publicly recorded auction results and are updated weekly.
About This Data
Data Sources
Price data is aggregated from 5+ auction houses and marketplaces worldwide, including Christie's, Sotheby's, Phillips, Bonhams, and specialized online platforms.
Methodology
Average prices are calculated from verified completed sales. All prices are converted to USD using the exchange rate at the time of sale. Outliers and withdrawn lots are excluded.
Update Frequency
Data is updated weekly as new auction results become available. This page was last updated on 2026-02-25.
Coverage
This dataset covers 10 years of resale history (2004–2026), with 33 documented transactions.
This data is provided for informational purposes only and should not be considered financial advice. Past performance does not guarantee future results.