Rillaboom (Japanese)
S4a: Shiny Star V · 205/190 · Shiny Rare
Current Prices
Number
205/190
Rarity
Shiny Rare
Variant
Holofoil
Market
US (TCGplayer)
Last Updated
Jun 9, 2026
Rillaboom (Japanese): Rarity & Collectibility
Rillaboom (Japanese) in its sought-after Holofoil variant is a genuine Rare that print runs hold back, so collectors have to hunt for clean copies. Cataloged as Rare #205/190 of the S4a: Shiny Star V set, it is the kind of card RarePokemonCard tracks for scarcity and collector demand rather than raw price alone. The harder a card is to pull in top condition, the more weight serious collectors place on it.
How Rare & Valuable Is Rillaboom (Japanese)?
In 2026, a Near Mint Rillaboom (Japanese) (Rare, S4a: Shiny Star V #205/190) changes hands at roughly $2.78, and desirability among set-builders keeps that number firm. Because demand concentrates on clean copies, surface wear is punished hard: a Near Mint example commands about $2.78, whereas a Lightly Played one slides to around $3.39. At the very top, a gem-mint PSA 10 Rillaboom (Japanese) is valued near $26.56 — about 9.6x the raw copy, the clearest sign of how much collectors pay for flawless scarcity.
Graded Rillaboom (Japanese): Gem Mint & Population
Even for a card at this rarity, the top of the market belongs to certified gem-mint copies. A PSA 10 (or CGC 10 / BGS Black Label equivalent) Rillaboom (Japanese) sits around $26.56 — roughly 9.6x a raw copy. That gap exists because relatively few examples ever earn a perfect grade, so gem-mint population is the real scarcity collectors chase. Step down a notch and demand spreads across PSA 9 $17.00, CGC 9.5 $13.79 — each tier a smaller, scarcer pool than the one below it. The rule of thumb for collectors: the rarer the card, the more a certified high grade matters to its standing.
Detailed Price Breakdown
| Source | Condition / Grade | Average | Low | High | Sales |
|---|---|---|---|---|---|
| ebay | LIGHTLY PLAYED | $3.39 | $3.39 | $3.39 | 1 |
| ebay | NEAR MINT | $3.00 | $3.00 | $3.00 | 15 |
| ebay | BGS 10 | $202.50 | $202.50 | $202.50 | 1 |
| ebay | CGC 9 5 | $13.79 | $13.79 | $13.79 | 1 |
| ebay | PSA 10 | $26.56 | $26.56 | $26.56 | 13 |
| ebay | PSA 9 | $17.00 | $17.00 | $17.00 | 2 |
| tcgplayer | NEAR MINT | $2.78 | $2.74 | $2.78 | 33 |
Collector Outlook for Rillaboom (Japanese)
Rillaboom (Japanese) holds steady chase appeal: a Rare that completists actively track down in top condition. An accessible pickup whose pull is enjoyment and progress toward a finished set. Whether you are chasing it for a set or as a centerpiece, revisit Rillaboom (Japanese) on RarePokemonCard — rarity demand in 2026 shifts with reprints, set nostalgia, and how few high-grade copies surface.
