New Research with Claude · Query millions of auction results from your own AI toolsGet Started

Theo Fennell Auction Prices and Market Value

Realized auction results · updated September 2026 · sourced from 100+ auction houses

The median realized auction price for Theo Fennell is $2,500 and the average is $3,500, based on 342 verified sold lots from 1998 to 2026 across 1 categories (jewelry) worldwide. These are prices items actually sold for, not asking prices.

342 total Theo Fennell lots tracked · record result $29,000 (Sotheby's)
Create your free account →Free to start · no card required
Median realized
$2,500
Average realized
$3,500
90th percentile
$7,200
Record result
$29,000
ALT/FNDATA Theo Fennell Index
239 2005=100
Since 2005
+139%
Last full year YoY
-41.5%
Verified sold lots
342

Theo Fennell price trend (median realized, all categories)

2005: $1,100 median (n=3)2006: $1,300 median (n=6)2007: $2,800 median (n=6)2008: $1,500 median (n=7)2009: $1,500 median (n=12)2010: $2,900 median (n=21)2011: $2,900 median (n=20)2012: $3,200 median (n=28)2013: $3,000 median (n=11)2014: $3,100 median (n=8)2015: $1,900 median (n=16)2016: $2,400 median (n=13)2017: $1,700 median (n=9)2018: $2,900 median (n=6)2019: $1,900 median (n=11)2020: $3,300 median (n=8)2021: $2,800 median (n=28)2022: $2,100 median (n=15)2023: $1,700 median (n=22)2024: $4,400 median (n=40)2025: $2,600 median (n=21)2026: $1,400 median (n=7)’07’10’13’16’19’22’25’26

The ALT/FNDATA Theo Fennell Index tracks the blended median realized price each year, 2005 = 100. How we calculate this →

Theo Fennell by category

CategorySold lotsMedianAverageRecord
Jewelry338$2,500$3,500$29,000

Record Theo Fennell results

PriceLotCategoryHouseDate
$29,000160. diamond necklace, theo fennellJewelrySotheby's2009-03-19
$23,500A Diamond Necklace Theo FennellJewelryBonhams2003-04-10
$20,900A THREE-COLOUR PALM TREE BROOCH, BY THEO FENNELLJewelryChristie's2006-06-13
$20,000A diamond heart pendant by Theo FennellJewelryBonhams2003-10-02
$18,900320. diamond ring, theo fennell, 1998JewelrySotheby's2010-07-15
$14,700A green tourmaline, ruby and gold necklace, by Theo FennellJewelryBonhams2011-12-08
See every Theo Fennell sale, free

Create a free account to unlock the full 1998-2026 price history for Theo Fennell, filter by model, reference, category and house, and export the data.

  • All 342 verified sold lots, with the price each one realized
  • Filter by model, reference, category, condition and auction house
  • Export to CSV and pull the same data through the API
Create your free account →
No card required · built on 19.24M realized results from 100+ auction houses

Maker

Theo Fennell Ltd.
Theo Fennell Ltd.

Privately held, so no listed parent. Publicly owned maisons link here to their parent company profile and ticker.

Frequently asked questions

What is the average price of a Theo Fennell at auction?
The average realized auction price is $3,500 and the median is $2,500, based on 342 verified sold lots (1998-2026) across 19 vendors (ALT/FNDATA, as of September 2026).
What is the most expensive Theo Fennell ever sold at auction?
The record is $29,000, set by the 160. diamond necklace, theo fennell at Sotheby's.
Which categories does Theo Fennell sell in at auction?
Theo Fennell appears across 1 categories: jewelry. See the table above for the median and record in each.

Source: ALT/FNDATA, 19.24M realized auction results across 37 collectible categories, normalized to USD. Methodology · All brands · Market statistics