Diamond 9 Sports Cards (4.4 β)
Independent collector notes and community insights below.

π About
On the corner of Placentia Ave and Bastanchury Rd. Sports cards and collectible shop and show all in one place. Shows are on Saturdays from 10AM-6PM, and Wednesdays from 3PM-9PM. The card shop is open 7 days a week.
π¬ Collector Notes
Independent editorial assessment
Clean setup with solid inventory flowβgood mix of raw and slabbed singles across sports, with some wax to rip. Not a huge TCG focus; it’s mainly a sports card shop. Staff knows comp values and doesnβt insult your trade baitβno “grumpy legend” vibes here.
Who this shop is (and isn’t) for
β Best For
- Sports card collectors
- Vintage collectors
- High-end / investment collectors
- Slabbed card buyers
- Sealed wax buyers
β Not Ideal For
- PokΓ©mon/TCG collectors
- Kids & beginner collectors
- Looking for deep singles inventory
- Seeking in-store play environments
β Review Summary
Diamond 9 Sports Cards is praised for its solid selection of sports cards, including both current and vintage inventory. Customers frequently mention helpful staff and a clean, well-organized shop layout.
Google Reviews Rating: 4.4
Total Reviews: (122)
π Location & Contact
- Address: 1850 N Placentia Ave
- City: Placentia
- Phone : (714) 488-9706
β° Store Hours
- Sunday: 11 AM-7 PM
- Monday: Closed
- Tuesday: 11 AM-7 PM
- Wednesday: 11 AM-7 PM
- Thursday: 11 AM-7 PM
- Friday: 11 AM-7 PM
- Saturday: 11 AM-7 PM

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