How often does Rillaboom SWSH277 sell?

Rillaboom SWSH277 SWSH Black Star Promos recorded 22 sales across every grade in the last 90 days (9 in the last 30), most recently on Nov 8, 2026. The highest recent sale was $3.00 for an ungraded copy on Oct 27, 2026.

What is the most valuable card in SWSH Black Star Promos?

The most valuable card in SWSH Black Star Promos is Special Delivery Bidoof SWSH177, at about $600 ungraded. Rillaboom SWSH277 ranks 292nd of 304.

What set is Rillaboom SWSH277 from?

Rillaboom SWSH277 is from the English Pokémon TCG set SWSH Black Star Promos, released Nov 15, 2019, in the Sword & Shield era. Its rarity is Promo.

What is Rillaboom SWSH277 worth raw, in PSA 9 and in PSA 10?

As of Nov 12, 2026, Rillaboom SWSH277 is about $0.54 ungraded near mint (22 sales in 90 days); PSA 9: too few sales to price; PSA 10: too few sales to price.

Why do two copies of Rillaboom SWSH277 differ in price?

As of Nov 12, 2026, there is one printing of Rillaboom SWSH277, so the gap is condition: near mint is $0.54. Too few played copies have sold to price each condition on its own.

Promo2019Sword & Shield era

RillaboomSWSH Black Star Promos SWSH277 price & value

Name: Rillaboom SWSH277 SWSH Black Star Promos
Brand: Pokémon
SKU: swshp-SWSH277

Japanese prints: 7 Japanese Rillaboom cards are listed, $0.14 to $15.16 ungraded.

Rillaboom SWSH277, SWSH Black Star Promos Pokémon card — Press the card to zoom in

UltraBall Market ValueUngraded

$0.54

down −3.3%4 weeks · Steady

Low confidence

How closely the price sources agree, and how often the card trades.

22 ungraded in the last 90 days, all conditions
20 sales on record listed as near mint
Last sale Nov 8, 2026

How we calculate the UltraBall Market Value →

High liquidity77/100

High liquidity

Trades often, at prices that agree. It counts sales, not how long a listing takes to sell.

About 7 ungraded copies sell a month across all conditions, the pace of the last 90 days.

How we measure liquidity →

Near mint · UltraBall Market Value · 22 ungraded sales in the last 90 days, all conditions · as of Nov 12, 2026

Graded: CGC 9 $5.00CGC 8.5 $2.00

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Prices updated Nov 12, 2026 · How we calculate the UltraBall Market Value

People ask about this card

What is Rillaboom SWSH277 worth raw, in PSA 9 and in PSA 10?: As of Nov 12, 2026, Rillaboom SWSH277 is about $0.54 ungraded near mint (22 sales in 90 days); PSA 9: too few sales to price; PSA 10: too few sales to price. Every grade’s price.
Why do two copies of Rillaboom SWSH277 differ in price?: As of Nov 12, 2026, there is one printing of Rillaboom SWSH277, so the gap is condition: near mint is $0.54. Too few played copies have sold to price each condition on its own. Recent sales.

Price history

Rillaboom SWSH277 price over time

Jul 22Aug 19Sep 17Oct 15Nov 12

Recorded prices, joined day to day

Ungraded, 1 year: $0.55 on Jul 22, 2026, $0.54 on Nov 12, 2026. Lowest $0.53, highest $0.62.

Now: $0.54
4 weeks: −3.3%
90 days: −6.0%
1 year: –no daily prices that far back (daily since Jul 22)
Highest, 1Y: $0.62
Lowest, 1Y: $0.53

Recorded history starts July 2026. Earlier history is monthly averages; from July 22, 2026 the line is a smoothed 7-day average of daily prices, so single-day swings don’t show. Between recorded prices, the line and its daily values are estimated from the prices either side.

Rillaboom SWSH277 price by month

Ungraded, at the end of each month, newest first: the line above read off at each month’s last day. The latest month ends on today’s UltraBall Market Value.

Month	Ungraded	Change on month
November 2026to Nov 12, 2026	$0.54	down −5.3%
October 2026	$0.57	up +1.8%
September 2026	$0.56	up +3.7%
August 2026	$0.54	down −13%
July 2026	$0.62	–

Matched to this exact card

Recent verified sales

Latest 8

RawRillaboom - SWSH277 - Promo (Black Star Promos) - Pokemon EnglishNov 8, 2026 · eBay · Condition not stated · View listing · $1.41
RawPokemon Rillaboom Holo Black Star Promo Card Swsh277 Near Mint PokemonNov 6, 2026 · eBay · Sold as near mint · View listing · $1.57
RawRillaboom SWSH277 SWSH: Sword & Shield Promo Cards Holofoil Pokemon (MP-NM)Oct 31, 2026 · eBay · Sold as moderate play · View listing · $1.00
RawPokemon Rillaboom SWSH277 Sword Shield Black Star Promo Cosmo HoloOffers taken · asking price shownOct 29, 2026 · eBay · Sold as near mint · Offers taken · View listing · Asking price, up to $1.97asking
RawPokemon Rillaboom SWSH277 Sword Shield Promo HoloLikely best offer · asking price shownOct 27, 2026 · eBay · Sold as light play · View listing · Asking price, up to $3.00asking
RawRillaboom - Promo - #SWSH277 - Lightly PlayedLikely best offer · asking price shownOct 26, 2026 · eBay · Sold as light play · View listing · Asking price, up to $2.66asking
RawRillaboom - Holo Promo SWSH: Sword & Shield Promo Cards SWSH277 NMOffers taken · asking price shownOct 25, 2026 · eBay · Sold as near mint · Offers taken · View listing · Asking price, up to $1.99asking
RawRILLABOOM SWSH277 HOLO PROMO SWORD & SHIELD PROMO POKEMON NEAR MINTLikely best offer · asking price shownOct 24, 2026 · eBay · Sold as near mint · Buy It Now · View listing · Asking price, up to $2.49asking

Every sale here was matched to this exact card: the right number, set, printing and language, one card per listing, raw kept apart from graded. Where a venue sells by card and gives no listing title to check, the row says the venue named the card. Listings we can’t be sure of are left out. A price marked ≤ is an asking price, not a confirmed sale. On an accepted best offer we show what the buyer paid, not the asking price; where that isn’t on record the asking price is shown as a ceiling and never counts towards the price. A sale marked unusual is far from that grade’s market price: it stays on the record, and is left out of this page’s latest-sale and comparison figures. Sales record updated Nov 11, 2026.

Graded values

Rillaboom SWSH277 price by grade

Rillaboom SWSH277: market price, 4-week change, sales pace and last sale by grade
Grade	Market value	4 wk	Sales/moSales a month	Last sale
UngradedLow. How closely the price sources agree, and how often the card trades.	$0.54Last $1.41 · Nov 8, 2026	down −3.3%	7High liquidity. High	$1.41Nov 8, 2026Low. How closely the price sources agree, and how often the card trades.
CGC 99.3× rawLow. Few recent sales in this condition. Treat the figure as a rough guide.	$5.00	–	No recent sales	–Low. Few recent sales in this condition. Treat the figure as a rough guide.

Each graded row counts only that grade's sales; the ungraded row counts every condition. Sales a month is the 90-day pace. Last sale is the latest verified sale, never an asking price. How we calculate the UltraBall Market Value

Grade it with CGC?

Grade yours from photos →

If it gets a CGC 9: −$41.13
If it gets a CGC 8.5: −$43.73
CGC fee for a CGC 9: $20.00 Economy

Against selling raw at $0.54, after the CGC fee for what the slab is worth (a 9 goes in at Economy, $20.00; a 8.5 at the same level), $25.00 shipping and insurance, and eBay US selling fees, as the selling calculator works them out, with its usual $5 postage and $1 packing on each sale: the same sum as the selling calculator.

Population report24 PSA graded · Grade breakdown and gem rate

Population

PSA graded: 24
PSA 10: 5
PSA 9: 15
Historical PSA 10 rate: 21%; PSA 10s of all graded

A higher historical PSA 10 rate than 36% of the SWSH Black Star Promos cards PSA has graded enough of.

Grader	Graded	10s	9s	10s share
PSA	24	5	15	21%
CGC	33	4	15	12%

PSA graded: 24
10s: 5
10s share: 21%
Historical PSA 10 rate: 21%

Every PSA grade (4)

PSA population by grade
Grade	Copies	Share
10	5	21%
9	15	63%
8	2	8.3%
7	2	8.3%

PSA’s count of Oct 15, 2026. The rate is PSA 10s over every copy PSA has graded.

CGC graded: 33
10s: 4
10s share: 12%
Historical CGC gem rate: 12%; Gem: 10s, Pristine and Perfect 10s

Every CGC grade (7)

CGC population by grade
Grade	Copies	Share
10	4	12%
9.5	3	9.1%
9	15	45%
8.5	5	15%
8	3	9.1%
7.5	2	6.1%
7	1	3.0%

CGC’s count of Nov 10, 2026. 10s share counts every 10 label; CGC’s own gem is 10s, Pristine and Perfect 10s.

PSA’s count of Oct 15, 2026. CGC, BGS and SGC as of Nov 10, 2026; their 10s include Pristine, Perfect and Black Label 10s. PSA counts the cards it has graded, not every copy that exists. Compare with the low pop cards and the hardest PSA 10s.

Ungraded price against PSA’s population

The same 11 weeks, Jul 24, 2026 to Sep 28, 2026: the price on the day of each weekly PSA report, and the report’s counts. Side by side, not cause and effect.

PSA graded
PSA 10s

Left: ungraded price, US$. Right: PSA graded copies.

About

About this card

Rillaboom is card SWSH277 in the SWSH Black Star Promos price guide, a set released in November 2019 during the Sword & Shield era. Its rarity is Promo. The artwork is by DOM. In the checklist it sits after Togetic SWSH276 and before Cinderace SWSH278.

It is the 292nd most valuable of the 304 priced cards in SWSH Black Star Promos, behind Special Delivery Bidoof SWSH177 (see the most valuable SWSH Black Star Promos cards).

It is one of 18 English Rillaboom cards, and ranks 13th among them by ungraded value; the most valuable is Rillaboom VMAX from Rebel Clash. Compare them all in the most valuable Rillaboom cards.

What the data says

The ungraded value has held within 10% over four weeks (−3.3% on 7-day averages), on 22 ungraded sales in 90 days.

From prices of Nov 12, 2026 and sales to Nov 8, 2026. Observations, not advice or a forecast. How we read the market

Market snapshot

How each figure is worked out

4 weeks: −3.3%ungraded, between 7-day averages
90 days: −6.0%ungraded, between 7-day averages
1 year: –no daily prices that far back: daily since Jul 22, 2026
Direction: Steadywithin 10% of four weeks ago, on 7-day averages
High since daily tracking: 14% under$0.63 on Jul 29, 2026, 7-day average; daily prices since Jul 22, 2026
Liquidity: High7.3 ungraded sales a month over 90 days
Price confidence: Low confidenceFew recent sales in this condition. Treat the figure as a rough guide.
Ungraded sold: 9in 30 days; 22 in 90
PSA 10 population: 5of 24 PSA graded, count of Oct 15, 2026

Card details

Set: SWSH Black Star Promos
Number: SWSH277
Set code: PR-SW
Rarity: Promo
Released: Nov 15, 2019
Era: Sword & Shield
Pokémon: Rillaboom
Pokédex no.: #0812
Illustrator: DOM
Printings: Holofoil

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Cite this price

Rillaboom SWSH277 (SWSH Black Star Promos) is worth $0.54 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/swsh-black-star-promos/rillaboom-swsh277).

Citation

Rillaboom SWSH277 (SWSH Black Star Promos) is worth $0.54 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/swsh-black-star-promos/rillaboom-swsh277).

Link

https://ultraball.com/cards/swsh-black-star-promos/rillaboom-swsh277

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<a href="https://ultraball.com/cards/swsh-black-star-promos/rillaboom-swsh277">Rillaboom SWSH277 (SWSH Black Star Promos) price: $0.54 on UltraBall</a>

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