Underground Sea

Underground Sea Prices — $899.02 | Revised Edition | Magic: The Gathering

Underground Sea from Revised Edition is worth $899.02 as of October 12, 2026.

Underground Sea sold prices & eBay comps · Price chart

Revised Edition checklist with prices · Revised Edition completion cost · Magic: The Gathering price guide

Underground Sea - Revised Edition - Magic: The Gathering card
Card Name
Underground Sea
Current Price
$899.02
Price Range
$449.51 – $1348.53
Set
Revised Edition
Game
Magic: The Gathering
Rarity
Rare
Card Number
290
Era
Modern
Artist
Rob Alexander
Type
Normal
PSA 10 Price
$1695.00
PSA 9 Price
$1299.00
PSA 8 Price
$847.09
Volatility
Stable
EUR Price
€707.72
Last Updated
October 12, 2026

Grading & Population Snapshot

PSA Total Population
688
PSA 10 Population
48
PSA 10 Chance
0.1%
Grade Difficulty
Very Hard
PSA 10 Value
$1695.00
Estimated PSA 10 Market Cap
$81,360
Underground Sea Price Trends
PeriodChange
30d+12.0%
90d+12.0%
180d+87.6%
1 Year+119.4%

Raw & Graded Price Snapshot

Condition / GradePrice7d30dRecent Sales
Raw / Ungraded$899.020.0%+12.0%N/A
PSA 10$1695.000.0%N/ASee sold listings
PSA 9$1299.00N/AN/ASee sold listings
PSA 8$847.09N/AN/ASee sold listings

PSA 10 Gem Rate: 0.1% (688 total graded)

Grading premium: PSA 10 is worth 57% more than raw.

Marketplace Price Comparison

SourcePriceBasisAction
Guardian Estimate$899.02Blended market valueView price history
TCGPlayer$1105.08Marketplace priceCheck listings
Cardmarket€707.72European market priceCompare markets

Sources tracked: tcgplayer_market, cardmarket.

How Guardian Calculates This Price

Guardian combines marketplace prices, recent sold listings, graded-card estimates, and cross-market checks into one daily card value. We separate raw and graded prices where data is available, ignore obvious outliers, and update card pages as new market data arrives.

Read the full Guardian Oracle pricing methodology.

Track, Grade, or Sell This Card

Underground Sea is a Rare land card from the Revised Edition set of Magic: The Gathering, reflecting its significance in both gameplay and collector markets. With a current market value of $918.38, it is sought after for its ability to produce both blue and black mana, essential for many competitive decks. Its scarcity and historical importance contribute to its high demand among collectors and players alike.

Track Underground Sea price trends, view grading values, and get market alerts on Guardian TCG. Updated daily with data from multiple sources.

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Frequently Asked Questions

How much is Underground Sea from Revised Edition worth?

Underground Sea from Revised Edition is currently worth $899.02 in 2026. Prices are updated daily from multiple sources.

Is Underground Sea worth grading?

Underground Sea has a 0.1% gem rate (chance of PSA 10). A PSA 10 is worth $1695.00 compared to $899.02 raw. The low gem rate means only pristine copies should be submitted.

How rare is Underground Sea in Revised Edition?

Underground Sea is a Rare card from the Revised Edition set in Magic: The Gathering. 688 copies have been graded by PSA.

Is Underground Sea going up in value?

Underground Sea has decreased 0.0% in the last 7 days and increased 12.0% in 30 days. Current Guardian Estimate: $899.02.

How many Underground Sea have been PSA graded?

688 copies of Underground Sea have been submitted to PSA for grading. The PSA 10 gem rate is 0.1%. PSA 10 copies currently sell for $1695.00.

Where can I buy Underground Sea?

You can compare prices and buy Underground Sea on TCGPlayer, eBay, and CardMarket. Guardian TCG tracks live prices from all three sources — current Guardian Estimate: $899.02.

How much is Underground Sea from Revised Edition worth?

Underground Sea from Revised Edition is currently worth $899.02 in 2026. Prices are updated daily from multiple sources.

Is Underground Sea worth grading?

Underground Sea has a 0.1% gem rate (chance of PSA 10). A PSA 10 is worth $1695.00 compared to $899.02 raw. The low gem rate means only pristine copies should be submitted.

How rare is Underground Sea in Revised Edition?

Underground Sea is a Rare card from the Revised Edition set in Magic: The Gathering. 688 copies have been graded by PSA.

Is Underground Sea going up in value?

Underground Sea has decreased 0.0% in the last 7 days and increased 12.0% in 30 days. Current Guardian Estimate: $899.02.

How many Underground Sea have been PSA graded?

688 copies of Underground Sea have been submitted to PSA for grading. The PSA 10 gem rate is 0.1%. PSA 10 copies currently sell for $1695.00.

Where can I buy Underground Sea?

You can compare prices and buy Underground Sea on TCGPlayer, eBay, and CardMarket. Guardian TCG tracks live prices from all three sources — current Guardian Estimate: $899.02.