Japanese Mbd-Mega Starter Set Mega Diancie EX PSA Population Report
The PSA population report for Japanese Mbd-Mega Starter Set Mega Diancie EX counts 4,325 grades across 7 cards as of September 18, 2026. 3,776 of those grades are PSA 10s, a set-wide gem rate of 87.3%. The table lists every card of this set in GemRate's public PSA population tracking, with PSA 10 and PSA 9 counts, total grades, and per-card gem rate.
- Most graded: Meloetta #022, 3,994 total grades.
- Fewest PSA 10s: Mimikyu #006, 123 PSA 10s out of 144 graded.
- Hardest to gem: Mega Diancie EX #005, a 85.3% gem rate across 177 grades.
| # | Card | PSA 10 | PSA 9 | Total graded | Gem rate |
|---|---|---|---|---|---|
| 003 | Cresselia | 1 | 0 | 2 | n/a |
| 004 | Meloetta | 1 | 0 | 1 | n/a |
| 005 | Mega Diancie EX | 151 | 24 | 177 | 85.3% |
| 006 | Mimikyu | 123 | 18 | 144 | 85.4% |
| 016 | Hero's Cape | 1 | 0 | 1 | n/a |
| 020 | Lillie's Determination | 6 | 0 | 6 | n/a |
| 022 | Meloetta | 3,493 | 433 | 3,994 | 87.5% |
Gem rate is PSA 10s as a share of total grades, shown only for cards with at least 25 total grades; smaller samples say almost nothing about real gem odds. Source: GemRate public PSA population tracking, refreshed with every BetterPop data pull. Figures on this page regenerate on every site build.
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