> Source: https://www.openingbid.art/artist/robert-proch-tone · updated 2026-11-01

# Robert Proch / TONE (1986–2019)

Robert Proch / TONE is a Polish artist with 18 auction lots recorded since 2020, median price $12,223. Some sold prices are hammer-only and exclude the buyer's premium; they are marked on this page.

A work by Robert Proch / TONE sold in 2025 for $23,153, according to OpeningBid's index of auction results.

## What is a Robert Proch / TONE work worth?

Across 15 sold lots tracked by OpeningBid, the median price of a Robert Proch / TONE work is $12,223.

The median Robert Proch / TONE painting sells for $12,569 across 11 lots.

The median Robert Proch / TONE print sells for $833 across 2 lots.

Some prices are hammer-only and exclude the buyer's premium.

## Price breakdown by category

| Category | Lots tracked | Median price | Record price | Sell-through | Last sale |
|---|---|---|---|---|---|
| Prints & Editions | 2 | $833† | $1,091 | — | 2025-10-22 |
| Paintings | 13 | $12,569† | $23,153 | 84.6% | 2025-04-14 |

† hammer price — buyer's premium not included.

Robert Proch / TONE's market splits by medium. Prints & Editions (2 lots) median $833. Paintings (13 lots) median $12,569, record $23,153. A typical Robert Proch / TONE painting sells for around 15× the price of a typical print.

## Price by size

### Paintings

| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| large (over 120 cm) | 7 | $12,396–$18,581† | $16,483† | $23,153 |

† hammer price — buyer's premium not included.

Size is the work's longest edge. Cells appear only with at least 5 sold lots.

## Notable results

| Medium | Year | Price |
|---|---|---|
| Paintings | 2025 | $23,153 |
| Paintings | 2023 | $19,098† |
| Prints & Editions | 2025 | $1,091 |
| Prints & Editions | 2021 | $575† |

† hammer price — buyer's premium not included.

The highest recorded result in each medium. The full sale history is in the OpeningBid app (free sign-up).

## Frequently asked questions

### What is a Robert Proch / TONE worth?

Across 15 sold lots tracked by OpeningBid, the median price of a Robert Proch / TONE work is $12,223. The median Robert Proch / TONE painting sells for $12,569 across 11 lots. The median Robert Proch / TONE print sells for $833 across 2 lots. Some prices are hammer-only and exclude the buyer's premium.

### What is the average price of a Robert Proch / TONE painting?

Based on 11 sold lots tracked by OpeningBid, the median auction price of a Robert Proch / TONE painting is $12,569. Some prices are hammer-only and exclude the buyer's premium.

### What is Robert Proch / TONE's most expensive painting?

The highest price recorded at auction for a Robert Proch / TONE painting is $23,153.

### What is Robert Proch / TONE's auction record?

Robert Proch / TONE's auction record is $23,153, set in 2025.

---

Data last updated 2026-11-01. OpeningBid tracks 15,222,099 auction lots from 571 auction houses, refreshed nightly.

Cite this page as: OpeningBid, “Robert Proch / TONE auction prices”, https://www.openingbid.art/artist/robert-proch-tone (updated 2026-11-01).

Historical auction data, not investment advice. Prices are premium-inclusive USD where the buyer's premium is recorded. Figures marked † are hammer prices (buyer's premium not included); ‡ marks a price whose basis is not yet verified. Non-USD results are converted at the sale month's rate.