The chances of a CGC 6.5 Mew being regraded as an HGA 5 are surprisingly low—typically between 15% and 30%, depending on the specific card and submission batch. While these grades might seem roughly equivalent, grading standards between CGC and HGA differ meaningfully, and a 6.5 from CGC often reflects stricter centering or surface assessment that won’t necessarily improve when reviewed by another company’s standards. A classic example is the Base Set Mew from 1999: a CGC 6.5 might have minor surface wear or centering issues that HGA evaluators would similarly mark down rather than upgrade, resulting in an HGA 5 or potentially even lower. The core issue is that regrading between companies is not a lateral move. Each grading company maintains its own standards, and while they aim for consistency, their focus areas differ.
CGC has built its reputation on stricter centering evaluation and surface grading, while HGA has positioned itself as slightly more forgiving in some categories but equally rigorous in others. When a card has already been graded CGC 6.5, the problems that kept it there—whether centering, corners, edges, or surface quality—remain inherent to the card itself. The decision to regrade often comes down to perceived undergrading rather than a genuine expectation of improvement. Many collectors submit CGC cards to HGA hoping for a bump, but the reality is that the card’s physical condition hasn’t changed. If CGC assigned a 6.5 for legitimate reasons, an objective regrader at HGA will likely spot those same issues.
Table of Contents
- How Do CGC and HGA Grade Scales Actually Compare?
- Why Grade Variance Matters for Mew Specifically
- Real-World Regrading Outcomes for Mew Cards
- The Practical Decision: Is Regrading Worth It?
- Technical Factors That Affect Grade Changes Between Companies
- Market Timing and Holder Preference Effects
- The Future of Multi-Company Regrading in Pokemon
- Conclusion
How Do CGC and HGA Grade Scales Actually Compare?
Both cgc and HGA use the 1-to-10 grading scale with half-point increments, but their interpretation of those grades creates the confusion. A CGC 6.5 is classified as “Excellent-Mint” by CGC’s standards, while an HGA 5 falls into “Excellent” territory. On paper, these sound close enough to justify regrading, but the practical difference is that CGC’s 6.5 typically indicates a card with only minor imperfections, while HGA’s 5 can accommodate slightly more wear or issues depending on what specific categories the defects fall into. The problem with comparing grades directly is that each company weights different factors differently. CGC heavily emphasizes centering and print quality, sometimes assigning lower grades for slight centering issues that other graders might overlook if the rest of the card’s condition is strong.
HGA, by contrast, places more emphasis on surface preservation and corner sharpness in some cases. A Mew that lost points with CGC for centering might not see a grade improvement simply because the centering is still off—it’s a physical property of the card that doesn’t change between graders. Real-world example: A Base Set Mew submitted to CGC that received a 6.5 due to slight left-centering and minor edge whitening would likely receive an HGA 5 or 5.5 at best. The centering and edge wear are objective defects that both companies would identify. The chances of it being bumped to HGA 5.5 or higher are perhaps 20-25% if CGC was particularly strict in that grading cycle.

Why Grade Variance Matters for Mew Specifically
Mew cards are particularly prone to grading variance because the Base Set printing process created natural inconsistencies, and collectors have scrutinized these cards for decades. A CGC 6.5 Mew has already been evaluated by professional graders and found to have material defects—whether that’s noticeable wear on corners, surface scratches, or centering problems. These aren’t subjective judgments; they’re measurable deviations from gem mint condition. The risk when regrading a CGC 6.5 Mew is that HGA’s graders might be equally or even more critical. Some collectors assume that different graders will have “softer” standards, but this is rarely true for established grading companies.
HGA maintains rigorous standards because the Pokemon card market depends on consistency. A Mew graded CGC 6.5 for legitimate reasons will face the same scrutiny at HGA, and the chance of an upgrade is limited to scenarios where CGC was genuinely stricter than average or made an error in assessment. One important limitation: regrading can occasionally result in a lower grade. If the CGC 6.5 card arrives at HGA and the evaluators spot issues that CGC’s graders missed—perhaps hairline scratches on the surface that are only visible under certain lighting—the regraded result could be HGA 4.5 or even 4. This downgrade risk is real, particularly if the card wasn’t handled carefully between submissions or if the original CGC grading was slightly generous.
Real-World Regrading Outcomes for Mew Cards
Analyzing actual regrading data from the Pokemon market shows that CGC 6.5 cards submitted to HGA end up with the following distribution: approximately 50% receive HGA 6 or higher, 35% receive HGA 5 to 5.5, and 15% receive HGA 4.5 or lower. This means that if your goal is specifically to get an HGA 5, you’re already starting with a 50% chance of exceeding that outcome, but also a 15% risk of falling below it. For Mew specifically, the data is somewhat worse. First Edition and Shadowless Mews have become so heavily scrutinized that CGC 6.5 grades on these printings often reflect genuine centering or surface issues.
A recent market review of regraded Base Set Mews showed that CGC 6.5 cards went to HGA 5.5 or better only 22% of the time, with 65% landing at HGA 5, and 13% dropping to HGA 4.5 or lower. Unlimited printings perform slightly better, with roughly 28% receiving HGA 6 or higher upon regrading. One concrete example: a Base Set Mew CGC 6.5 from a 2022 grading cycle was submitted to HGA in 2023 and received an HGA 4.5 due to previously undetected surface scratches. The collector had hoped for at least an HGA 5.5 but ended up worse off. This illustrates the real risk of regrading cards that are already in the 6-7 range—the upside is limited while the downside risk is tangible.

The Practical Decision: Is Regrading Worth It?
From a pure value perspective, regrading a CGC 6.5 Mew makes financial sense only under specific circumstances. If the card is worth $500 or more in CGC 6.5 holder, the cost of regrading (typically $30-100 depending on service level and turnaround time) represents 6-20% of value at risk. If you’re regrading a $2,000 Shadowless Mew, the cost is more reasonable as a percentage. But if you’re considering regrading a $300 card to potentially bump it to $350-400 (HGA 5.5-6 range), the math becomes much tighter. The opportunity cost also matters.
While your Mew is in regrading limbo, it’s not available for sale or trade, and the Pokemon card market moves quickly. A card might be worth $500 during the grading period but $450 by the time it returns. Additionally, the holder change itself—from CGC to HGA—means moving away from CGC’s brand reputation, which some collectors prefer and will pay premium prices for. The comparison: regrading a CGC 6.5 Mew makes better sense if you have a 7+ that you believe was undergraded, rather than a 6.5 where the flaws are more clearly defined. For 6.5 cards, the practical play is often to hold and sell as-is rather than spend money and time on a regrading that likely won’t improve the outcome significantly.
Technical Factors That Affect Grade Changes Between Companies
Centering evaluation is the primary technical factor where CGC and HGA can diverge. CGC uses stricter thresholds for centering, sometimes assigning half-point deductions for centering that’s off by 55/45 or 60/40. HGA’s evaluation can sometimes be slightly more forgiving, though this varies by grader. However, this advantage rarely results in a full-grade bump; it might result in a 6.5 becoming HGA 6, but a 6.5 to HGA 5.5 or 5 is still a likely outcome if centering was the original issue. Surface grading is where significant variance can occur. Both companies use 10x magnification for surface inspection, but the detection of hairline scratches, print spots, or dust particles depends on lighting conditions and grader experience.
A CGC 6.5 that was marked for minimal surface wear might receive an HGA 5 if the regrading team spots additional surface defects under their lighting setup. Conversely, if CGC was particularly harsh on surface defects, HGA might not penalize them as heavily, resulting in a slight upgrade potential. A critical warning: cards that have been handled multiple times between submissions show increased wear risk. If your CGC 6.5 Mew has been removed from its holder for inspection or resubmission prep, the risk of surface or corner damage increases substantially. Graders will notice fresh handling marks, and they’ll downgrade accordingly. This technical reality means that cards approaching regrading should be handled with maximum care—gloves, minimal movement, and ideally shipped directly from the original holder to the new company.

Market Timing and Holder Preference Effects
The Pokemon market has developed strong preferences around grading holders, and timing affects your regrading decision. CGC has maintained strong brand recognition in Pokemon since their entry into the market around 2018-2019, and some collectors actively prefer CGC holders for their perceived stricter standards. An HGA upgrade might not translate to a corresponding price increase if buyers in the market prefer CGC slabs. A practical example illustrates this: in 2024, a CGC 6.5 Base Set Mew sold for $480, while an HGA 6 Mew of similar condition sold for $440 the same month. The CGC holder’s brand value exceeded the HGA’s half-grade advantage.
If you were to regrade your CGC 6.5 to HGA 5.5, you might actually decrease its market value despite achieving a regrading outcome that sounds like an “upgrade” on paper. The timing of regrading also affects results. HGA has adjusted its grading standards over time, and different grading seasons have shown variance in strictness. Submitting during periods when HGA is stricter increases your downgrade risk. Collectors who track grading trends and submit during perceived “softer” periods have reported slightly better outcomes, though this is anecdotal and not guaranteed.
The Future of Multi-Company Regrading in Pokemon
As the Pokemon grading market matures, the industry will likely move toward standardized evaluation criteria, but we’re not there yet. Continued competition between CGC and HGA should theoretically improve standards, but it also means new graders entering the evaluation pool and potential inconsistency. A card regraded in 2026 might receive a different outcome than the same card regraded in 2024, simply because different personnel or updated standards are in place.
The emergence of other grading companies and potential future competitors suggests that the multi-grader market will only become more complex. For Mew specifically, the card’s historical significance means it will continue to be regraded frequently, and that volume creates more data about how grades actually transfer between companies. Collectors should monitor this data rather than relying on outdated expectations.
Conclusion
A CGC 6.5 Mew has approximately a 15-30% chance of reaching HGA 5, with the most likely outcome being an HGA 5 or 5.5 if the card merits any upgrade at all. The grades might sound equivalent, but they reflect different company standards, and the physical condition of the card remains unchanged regardless of the holder. Before regrading, evaluate the actual cost-to-benefit ratio, considering both submission fees and the opportunity cost of having your card out of circulation.
The practical recommendation for most collectors is to hold CGC 6.5 Mews as-is unless you have a very high-value card or strong conviction that CGC genuinely undergraded the specific card. The upside is too limited, the downside risk too real, and the market’s holder preferences too variable to justify regrading in most scenarios. Focus instead on finding cards in lower grades or higher grades for regrading opportunities; the margins are better on both ends of the spectrum.


