Kosai
Kosai is a Japanese artist with 22 auction lots recorded since 2002, median price $759. Some sold prices are hammer-only and exclude the buyer's premium; they are marked on this page. Some sold prices are not yet verified as premium-inclusive or hammer, and are marked on this page.
A work by Kosai sold in 2026 for $4,096, according to OpeningBid's index of auction results.
See the full Kosai record on OpeningBid — images, provenance, fair estimates and free sale alerts.
View Kosai on OpeningBid →What is a Kosai work worth?
Across 11 sold lots tracked by OpeningBid, the median price of a Kosai work is $759.
The median Kosai sculpture sells for $400 across 1 lots.
Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
Price breakdown by category
| Category | Lots tracked | Median price | Record price | Sell-through | Last sale |
|---|---|---|---|---|---|
| Sculpture & Installation | 1 | $400‡ | $400‡ | — | 2008-11-12 |
‡ reported price — whether it includes the buyer's premium is not yet verified.
Notable results
| Medium | Year | Price |
|---|---|---|
| Sculpture & Installation | 2008 | $400‡ |
‡ reported price — whether it includes the buyer's premium is not yet verified.
The highest recorded result in each medium. See the full sale history on OpeningBid.
Frequently asked questions
What is a Kosai worth?
Across 11 sold lots tracked by OpeningBid, the median price of a Kosai work is $759. The median Kosai sculpture sells for $400 across 1 lots. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
What is Kosai's auction record?
Kosai's auction record is $4,096, set in 2026.
See the full Kosai record on OpeningBid — images, provenance, fair estimates and free sale alerts.
View Kosai on OpeningBid →