Mox Diamond (Stronghold)
Among all cards inspired by the original Power Nine, Mox Diamond stands tallest.
Released in Stronghold (1998), it captured the essence of the Moxen – fast mana with a price – and quickly became one of the most powerful and collectible artifacts in Magic’s history.
Over 25 years later, Mox Diamond remains a Reserved List cornerstone, a Legacy staple, and one of the few non-Power Nine cards to achieve true “grail” status.
In today’s Rare Card Spotlight, we’ll explore Mox Diamond’s gameplay significance, market evolution, and why it continues to command such prestige among collectors.
What Is Mox Diamond?
- Card Name: Mox Diamond
- Set: Stronghold (1998)
- Rarity: Rare
- Card Type: Artifact
- Artist: Dan Frazier
- Effect:
If Mox Diamond would enter the battlefield, you may discard a land card instead. If you don’t, put it into its owner’s graveyard.
{T}: Add one mana of any color.
The design elegantly balanced the power of the original Moxen by adding a meaningful cost – a discarded land – while retaining explosive potential.
From its debut, Mox Diamond embodied efficiency, risk, and reward, making it an instant staple in high-skill, resource-management decks.
Competitive and Format Legacy
Mox Diamond has seen continuous play for more than two decades.
In Legacy, it anchors decks like Lands, Depths Combo, and Prison Stompy, enabling acceleration without tempo loss.
In Commander, it’s a coveted mana rock for any deck emphasizing consistency and explosive openings.
Unlike the original Moxen, Mox Diamond rewards strategic discipline – it’s not free power, but earned acceleration.
That design nuance has kept it balanced, beloved, and perpetually relevant.
Competitive and Market History
| Year | Event | Market Impact |
|---|---|---|
| 1998 | Stronghold release | Initially valued under $10; niche Legacy play. |
| 2005 | Legacy format expansion | Surged past $50; cemented as core acceleration piece. |
| 2015 | Commander popularity spike | Price surpassed $200; low-supply awareness grows. |
| 2021 | Reserved List rally | Briefly exceeds $700 amid broad collectible surge. |
| 2025 | Market maturity | Stabilized around $500–$600; premium copies command 30%+ premiums. |
Mox Diamond’s long-term trajectory has mirrored fine collectibles – steep early growth, brief corrections, and slow appreciation as supply dries up.
Collector and Grading Insights
- Print Run: Estimated ~16,000–18,000 rares; one of the smallest among 1990s expansions.
- Condition Sensitivity: Centering and edge wear common; true Near Mint copies increasingly scarce.
- Population Data: Under 400 PSA/BGS 9+ combined; PSA 10s represent <5% of submissions.
- Reserved List Protection: Permanently unreprintable – a major driver of long-term appreciation.
- Premium Multipliers: Graded 9.5s regularly exceed $1,200; raw Near Mint copies hover around $550.
For collectors, Mox Diamond checks every box: iconic design, mechanical lineage to the Power Nine, and hard-capped supply.
Market Behavior and Liquidity
Mox Diamond has become one of the most liquid Reserved List cards on the market:
- Raw Near Mint: $500–$600 with steady upward drift.
- Graded PSA 9/BGS 9: $800–$1,000 range.
- PSA 10s: $1,500+ with minimal public availability.
- Foil versions: None — original printing only, reinforcing scarcity.
Liquidity rivals Gaea’s Cradle and The Tabernacle at Pendrell Vale, cementing it as a blue-chip asset for long-term collectors.
Why Collectors Revere It
- Direct mechanical descendant of the Power Nine Moxen.
- Reserved List protection ensures perpetual scarcity.
- Ubiquitous in Legacy, Commander, and Cube formats.
- Art by Dan Frazier, tying it visually to the original Mox series.
- Maintains exceptional liquidity across conditions and grades.
Mox Diamond perfectly balances nostalgia, playability, and investment potential – a trifecta achieved by only a handful of cards in Magic’s history.
Long-Term Outlook
As of 2025, Mox Diamond has matured into a truly institutional collectible.
Expect annual appreciation of 5–8% for raw copies and double-digit growth for PSA/BGS 9.5+ examples as high-grade supply tightens further.
For collectors seeking exposure to the Reserved List’s upper tier, Mox Diamond represents the purest expression of Magic’s financial and mechanical heritage – power with purpose.
Related Reading
- Rare Card Spotlight – Force of Will (Alliances, 1996)
- Rare Card Spotlight – Liliana of the Veil (Innistrad, 2011)
- Price Trends – Modern Staples in 2025
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