Crystal Shark [Quarter Century Secret Rare] #RA03-EN031
Lowest prices on eBay now
Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 collector guide
About Crystal Shark
Crystal Shark is an Effect Monster, printed as RA03-EN031 in Quarter Century Bonanza (2024) as a Quarter Century Secret Rare. It is a Level 5 WATER Fish monster with 1,100 ATK and 800 DEF. At its Level it needs one Tribute to Normal Summon. Quarter Century Bonanza, released in late 2024, mixes classic cards from the original series with modern staples, each in several rarities including Quarter Century Secret Rare and Platinum Secret Rare. Ungraded, this printing ranks 824th of the 968 Quarter Century Bonanza cards we track. The top card is Blue-Eyes White Dragon at €192.99.
Character and collecting appeal
Fish monsters are a small Type that often works with water Field Spells. Its effect centres on banishing cards and Special Summoning. Its once-per-turn limits are typical of modern card design.
Version and identification
Check the code printed below the artwork on the right: it should read RA03-EN031. RA03-EN031 is the English printing. Other languages use their own letters in place of EN, such as DE or FR, and are priced separately. It is the Quarter Century Secret Rare version. Quarter Century Secret Rares were introduced for the game's 25th anniversary. Quarter Century Bonanza has 6 other printings of Crystal Shark: RA03-EN031 Collector's Rare (€1.06), RA03-EN031 Platinum Secret Rare (€1.42), RA03-EN031 Secret Rare (€2.86), RA03-EN031 Super Rare (€0.07), RA03-EN031 Ultimate Rare (€0.09) and RA03-EN031 Ultra Rare (€0.09). Each has its own price, so match the code, edition and rarity exactly.
Price history
Today an ungraded copy of this printing sells for about €0.20, a PSA 9 for €5.35 and a PSA 10 for €27.89. Our monthly prices for it go back to November 2024. Over the last 12 months ungraded copies are down 92%, and up 33% in the last month. Its highest monthly ungraded value was €2.63 in October 2025, 92% above today. PSA 10 copies have moved down 34% over the same 12 months. Of the 7 printings of Crystal Shark we track, this one ranks 4th by ungraded value. The most valuable is Quarter Century Bonanza RA03-EN031 Secret Rare at €2.86.
Grading and population
A PSA 10 sells for 139.5× the ungraded price and 5.2× a PSA 9. That gap is small, so grading fees may outweigh the gain unless the card is for your own collection. Modern foils can leave the pack with scratches, print lines or a slight curl, so even fresh copies do not always reach a 10.
Investment potential
In its favour: a price well below its October 2025 peak, which some collectors see as room to recover; an active market (25 recent completed sales), so it is easy to sell. Against it: falling prices, down 92% in a year; large modern print runs, which tend to cap prices unless a card becomes iconic. Treat this as background, not a prediction or financial advice.
Before you buy
Expect to pay around €0.20 for a clean ungraded copy; played copies sell for less, and a PSA 9 costs about €5.35. Ask the seller to show the code RA03-EN031 and the Quarter Century Secret Rare finish clearly in the photos, as listing titles often mix up printings. Modern foils can be scratched or curled straight from the pack, so check the surface under a light if you plan to grade.
Card details and image from YGOPRODeck. Yu-Gi-Oh! is a trademark of Konami; Search Cards is not affiliated with Konami.
Most popular Quarter Century Bonanza cards
How much is Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 (Quarter Century Bonanza) worth?
As of , an ungraded copy of Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 from Quarter Century Bonanza sells for about €0.20 (about $0.22), a PSA 9 for about €5.35 (about $6.00) and a PSA 10 for about €27.89 (about $31.28). These values are based on 25 recent completed sales, the latest on 16 Oct 2026. Ungraded values are down 92% over the last 12 months and PSA 10 values are down 34%. A PSA 10 sells for 139.5× the ungraded price.
Prices are market values from completed sales, shown in euros (converted from US dollars) and updated every few hours.
Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 FAQ
How much is Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 (Quarter Century Bonanza) worth?
Ungraded, Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 (Quarter Century Bonanza) is worth about €0.20 (about $0.22). A PSA 9 sells for about €5.35 (about $6.00). A PSA 10 sells for about €27.89 (about $31.28). Based on recent completed sales as of 23 Oct 2026.
What is a PSA 10 Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 worth?
A PSA 10 Gem Mint Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 (Quarter Century Bonanza) recently sold for about €27.89 (about $31.28), down 34% over the last 12 months. Its highest monthly PSA 10 value was €44.60 in November 2024.
Is Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 (Quarter Century Bonanza) worth grading?
A PSA 10 sells for about 139.5× the ungraded price (€27.89 vs €0.20). The gap is small, so grading fees may outweigh the gain for most copies.
Is Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 (Quarter Century Bonanza) going up in value?
Ungraded Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 values are down 92% over the last 12 months and up 33% over the last month. The highest monthly ungraded value was €2.63 in October 2025.
When was Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 (Quarter Century Bonanza) released?
Crystal Shark [Quarter Century Secret Rare] #RA03-EN031 was released on November 7, 2024 as part of Quarter Century Bonanza.