The Tiffany Yellow Diamond
- Maker
- Tiffany & Co.
- Year
- acquired 1878
- Rank
- 90 of 100
- Identifier
- 128.54 ct fancy yellow cushion-cut, 90-facet 'Stellar' cut
The Tiffany Yellow Diamond
Realized private sale: $30,000,000, dated 2019-02-24. This is a realized sale. Somebody paid it.
What is it, and why is it in the FLOAT 100?
Tiffany's crown jewel and brand identity stone - worn publicly only four times (Audrey Hepburn, Lady Gaga, Beyonce, 1957).
128.54 ct fancy yellow cushion-cut, 90-facet 'Stellar' cut
What is the best-sourced number for it?
- Figure
- $30,000,000
- Kind
- Realized private sale
- Date
- 2019-02-24
A realized private sale is a completed transaction outside an auction room. The amount is what changed hands on the date shown. Private sales are reported less consistently than auction results, so a single comparable carries less weight than a run of them.
By reference price, The Tiffany Yellow Diamond is number 15 of 99 in the jewelry entries of the FLOAT 100. 42 of those 99 rest on a realized sale; the rest carry an asking price or a guide value, and each page says which. Rank within the FLOAT 100 itself (90 here) is editorial: how much an object defines its field, not price alone.
How this is made
- The figure
- One reference price, shown with its own kind. FLOAT does not average it with anything or adjust it for time.
- Realized or not
- A realized price is a completed sale. A market asking price and a price-guide value are not sales, and are labeled as such wherever they appear.
- Why no grade ladder
- Most FLOAT 100 entries are individual objects. There is one of this, so there is no population and no spread across grades to show.
- Archive
- 2026-08-08
Track your own
FLOAT is a free tracker. Add the jewelry you own, keep photos and certificates with each item, and see a value built from real sales at your item's grade. This page is a public reference; it does not offer, price or sell insurance.