Jet-black Geist · Sealed Market Guide
Jet-black Geist (S6K) is a Japanese Pokémon TCG expansion; the Moon Stone catalog carries the booster box from this set.
Daily market tracking runs December 2024 to July 2026 (550 observations); the market price has risen 9.4% over the past year.
- 90-day change
- ▲ 7.4%
- 1-year change
- ▲ 9.4%
- Tracked high / low
- $103 / $88
- Typical daily swing (90d)
- ±0.4%
Signals and price movement are market context only, not advice or a guarantee of future value.
| Window | Change | High / Low | Typical swing |
|---|---|---|---|
| 30 days | 0.0% | $103 / $103 | ±0.0% |
| 90 days | ▲ 7.4% | $103 / $96 | ±0.4% |
| 1 year | ▲ 9.4% | $103 / $94 | ±0.3% |
| Full window | ▲ 12.2% | $103 / $88 | ±0.3% |
The market price has risen 12.2% across the tracked window (December 2024 to July 2026).
Daily movement has been widest in December 2024 (typical swing ±0.8%) and calmest in July 2026 (±0.0%).
Largest single moves between daily captures: +3.7% (Jun 4, 2026) and -2.2% (Dec 12, 2024).
Peer context: across the 31 other Japanese booster boxes Moon Stone tracks, the median one-year move is +60.3%; Jet-black Geist rose 9.4% over the same window.
Signals and price movement are market context only, not advice or a guarantee of future value.

Zeraora V
074/070 · Super Rare
$79

Caitlin
080/070 · Super Rare
$59

Blissey V
079/070 · Super Rare
$34

Shadow Rider Calyrex V
076/070 · Super Rare
$25

Caitlin
088/070 · Hyper Rare
$23

Metagross VMAX
087/070 · Hyper Rare
$16

Shadow Rider Calyrex VMAX
085/070 · Hyper Rare
$15

Peonia
082/070 · Super Rare
$14
Single-card values are market estimates for context only, from the Moon Stone singles index as published on 2026-07-12. They are not advice and not a guarantee of any pull or resale value.
Buying happens through membership. One annual fee, and every box in the catalog is listed at the live TCGplayer Market Price.
About membership →What is the Jet-black Geist booster box market price today?
As of 2026-07-12, the TCGplayer Market Price for Jet-Black Geist Booster Box is $103.21. Moon Stone lists the catalog product at that market price, refreshed daily; members order through Moon Stone.
Is Jet-black Geist worth buying in 2026?
That call belongs to each collector, and Moon Stone does not make it. Signals and price movement are market context only, not advice or a guarantee of future value. The tracked data: the market price has held roughly stable over the tracked window. Across the tracked window the market price has ranged $103 to $88 (high to low).
What are the chase cards in Jet-black Geist?
The chase pulls tracked for this set include Shadow Rider Calyrex VMAX, Zeraora V, Caitlin. The top listed pull is valued around $79 on current market data.
How does Moon Stone price Jet-black Geist product?
The catalog price is pegged to TCGplayer Market Price and refreshes daily. The discipline is simple: Moon Stone does not add a markup above that market number; membership is how the business works.