---
title: "Underground Sea 290 (Revised Edition) price, verified sales and population"
url: https://cardvolume.com/magic/revised-edition/underground-sea/
category: Magic: The Gathering
updated: 2026-09-26
as_of: 2026-09-27
source: CardVolume (https://cardvolume.com)
---

# Underground Sea 290 (Revised Edition): price, verified sales and population

> Underground Sea is the blue-black dual land from Revised Edition. Collectors and players search for it because it is a Reserved List dual land with heavy format-recognition and many visually similar but separate printings.

## Key facts

- CardVolume lists 5 verified sales of the Underground Sea 290 (Revised Edition) as of September 27, 2026.
- No grade has the 5 verified sales in 90 days needed for a market price; the most recent verified sale was $875.00 for a Revised Edition dual land CGC 6 on August 26, 2026 at Heritage Auctions.
- The highest verified sale on record is $875.00 for a Revised Edition dual land CGC 6 on August 26, 2026 at Heritage Auctions.

## Market price by version and grade

Market price = median of at least 5 verified sales in the last 90 days for that exact version, grader and grade. "—" means not enough verified sales.

| Version | Grade | Market price | Sales in window | Last verified sale | Record sale | Population |
|---|---|---:|---:|---|---|---:|
| Revised Edition dual land | CGC 9 | — | 1 | $843.75 (2026-08-12) | $843.75 (2026-08-12) | — |
| Revised Edition dual land | CGC 7.5 | — | 0 | $600.00 (2026-04-22) | $600.00 (2026-04-22) | — |
| Revised Edition dual land | CGC 6 | — | 1 | $875.00 (2026-08-26) | $875.00 (2026-08-26) | — |
| Revised Edition dual land | Raw · VG/EX | — | 0 | $750.00 (2025-06-04) | $750.00 (2025-06-04) | — |
| Revised Edition dual land | Raw · EX/NM+ | — | 0 | $575.00 (2025-06-25) | $575.00 (2025-06-25) | — |

## Verified sales

Each sale was confirmed on the linked page by an automated check or an independent second pass.

| Date | Version | Grade | Price (USD) | Buyer's premium | Venue | Source |
|---|---|---|---:|---|---|---|
| 2026-08-26 | Revised Edition dual land | CGC 6 | $875.00 | included | Heritage Auctions | [link](https://comics.ha.com/c/search/results.zx?archive_state=5327&auction_name=332634&auction_year=2026&dept=1938&mode=archive&session_desc=3767&sold_status=1526~1524) |
| 2026-08-12 | Revised Edition dual land | CGC 9 | $843.75 | included | Heritage Auctions | [link](https://www.ha.com/c/search/results.zx?archive_state=5327&dept_child=4419&layout=gallery&mode=archive&page=48~30&sb=5&si=2&sold_status=1526) |
| 2026-04-22 | Revised Edition dual land | CGC 7.5 | $600.00 | included | Heritage Auctions | [link](https://www.ha.com/c/search/results.zx?archive_state=5327&comic_category=2923&comic_grade=~~40t80~94t101&layout=gallery&mode=archive&page=72~59&sb=1&si=2&sold_status=1526) |
| 2025-06-25 | Revised Edition dual land | Raw | $575.00 | included | Heritage Auctions | [link](https://comics.ha.com/c/search/results.zx?archive_state=5327&auction_name=332526&auction_year=2025&dept=1938&ic4=GalleryView-AuctionNo-051517&mode=archive&sold_status=1526~1524) |
| 2025-06-04 | Revised Edition dual land | Raw | $750.00 | included | Heritage Auctions | [link](https://comics.ha.com/c/search/results.zx?archive_state=5327&auction_name=332523&auction_year=2025&dept=1938&ic4=GalleryView-AuctionNo-051517&mode=archive&sold_status=1526~1524) |

## How to identify each version

- **Revised Edition dual land**: White-border Revised Edition copy with no expansion symbol, land type Island Swamp, Rob Alexander art, and catalog number 290. Keep separate from Alpha, Beta, Unlimited, Collector's Edition, International Edition, Summer Magic, foreign black-border, and 30th Anniversary Edition treatments.

**Identity note:** Seed identity corrected from unnumbered to catalog number 290 using MTG references. Original Revised cards did not show collector numbers on-card.

## Why this card matters

Underground Sea is one of the original dual lands and is listed in Wizards of the Coast's Reserved List policy under Limited Edition. The Revised copy is not the first printing, but it is a major white-border tournament-era version that many buyers search separately from Alpha, Beta, and Unlimited. Its demand can include player utility, Old School or Eternal-format interest, and set collecting, so CardVolume should treat a Revised sale as evidence only for the Revised dual-land variant, not for every Underground Sea printing.

## Identifying the exact version

The Revised Edition version is a white-border rare land with no expansion symbol, Rob Alexander artwork, and the Island Swamp type line. Current catalog references identify it as 3ED #290. Do not merge it with foreign black-border, Summer Magic, Collector's Edition, International Edition, or 30th Anniversary treatments. A listing photo should confirm the border, language, copyright-era layout, back, and condition. The same card name appears on multiple versions, so the set name and physical treatment are mandatory identity fields.

## What moves the price between versions and grades

The verified Heritage records show that Revised Underground Sea sales vary by raw condition and slab grade, and the sequence is not perfectly ordered by grade because timing, venue, photos, and bidder pool matter. A CGC Mint 9 sale, a CGC EX/NM 6 sale, and raw VG/EX or EX/NM+ sales should not be averaged together without a clear condition adjustment. The correct process is to group comps by exact printing first, then separate raw condition, grader, grade, and sale venue.

## Authenticity checks

Compare against exact Revised references, checking the white border, no expansion symbol, Rob Alexander credit, rules text, card back, print registration, and known Revised color characteristics. Use several checks together and avoid destructive tests. For slabs, match the cert record, label, card identity, and seller photos, but remember that copied cert numbers exist. Because dual lands are frequently counterfeited, unresolved doubts should be handled by a specialist review rather than by relying on a single green-dot or light test.

## Common misconceptions

- **Myth:** "A Revised Underground Sea sale applies to all Underground Seas." **What the evidence says:** Alpha, Beta, Unlimited, Revised, CE/IE, foreign black-border, Summer Magic, and 30th Anniversary treatments are distinct variants and must not be merged.
- **Myth:** "Reserved List means the Revised card cannot have substitutes." **What the evidence says:** The policy concerns functionally identical tournament-legal reprints; collectors and players may still compare other treatments, proxies, or legal substitutes depending on use case.
- **Myth:** "White-border duals are automatically fake or less important." **What the evidence says:** Revised Edition is an official white-border Magic release; authenticity must be checked against the exact product, not a generic border assumption.

## FAQ

### How much did a CGC 9 Revised Underground Sea sell for?

A Heritage archive result shows a CGC Mint 9 Revised Underground Sea sold for $843.75 on 2026-08-12 [3].

### What is the card number for Revised Underground Sea?

Current catalog references identify Revised Edition Underground Sea as 3ED #290 [1].

### Is Underground Sea on the Reserved List?

Yes; Wizards of the Coast lists Underground Sea in its official Reserved List policy [2].

### How do I tell Revised from Unlimited Underground Sea?

The Revised copy is a white-border 1994 Revised Edition card cataloged as 3ED #290; confirm the exact set and printing rather than relying on the shared card name [1].

### Are raw sales comparable to graded sales?

Not directly; raw VG/EX or EX/NM+ Heritage results and CGC graded sales should be analyzed in separate comp groups [3,5].

### How many PSA 10 Revised Underground Seas exist?

A dated, source-stated PSA 10 population was not established in this research pass, so the honest answer is unknown.

## Sources

1. [Underground Sea (3ED) #290](https://mtg.dragonshield.com/card/3ed_290_UndergroundSea) (Dragon Shield MTG Card Manager)
2. [Official Reprint Policy](https://magic.wizards.com/en/news/announcements/official-reprint-policy) (Wizards of the Coast)
3. [Heritage Auctions Search: Revised Dual Lands August 12, 2026](https://www.ha.com/c/search/results.zx?archive_state=5327&dept_child=4419&layout=gallery&mode=archive&page=48~30&sb=5&si=2&sold_status=1526) (Heritage Auctions)
4. [Magic 30th Anniversary Edition Card Image Gallery](https://magic.wizards.com/en/news/card-image-gallery/30th-anniversary-edition) (Wizards of the Coast)
5. [Heritage Auctions Search: Underground Sea Raw June 2025](https://comics.ha.com/c/search/results.zx?archive_state=5327&auction_name=332523&auction_year=2025&dept=1938&ic4=GalleryView-AuctionNo-051517&mode=archive&sold_status=1526~1524) (Heritage Auctions)
6. [Heritage Auctions Search: Underground Sea CGC EX/NM 6 August 26, 2026](https://comics.ha.com/c/search/results.zx?archive_state=5327&auction_name=332634&auction_year=2026&dept=1938&mode=archive&session_desc=3767&sold_status=1526~1524) (Heritage Auctions)
7. [PSA Certification Verification](https://www.psacard.com/cert) (PSA)

## How to cite

> Underground Sea 290 (Revised Edition). CardVolume, https://cardvolume.com/magic/revised-edition/underground-sea/ (accessed 2026-09-27).

Machine-readable: https://cardvolume.com/api/v1/cards/magic--revised-edition--underground-sea.json · Method: https://cardvolume.com/methodology/