Diamond 9 Sports

Call Directions Website

Diamond 9 Sports Located 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 9AM-6PM, and Wednesdays from 3PM-9PM. The card shop is open 6 days a week, except Mondays.

We have been posting scammers, frauds and thieves more lately. This is for our own protection and the protection of thos...
10/04/2026

We have been posting scammers, frauds and thieves more lately. This is for our own protection and the protection of those in this industry. We only post truth. The absolute nonsense racist, sexist, anti-lgbtq+, maga-esque comments will not be tolerated here. We do not support these assenine ideals. I served OUR country in the US Navy for the protection of rights for anyone and everyone who sets foot on this land. Remember, this land was originally soiled by immigrants (our founding fathers, white people). Feel free to comment on our posts, but be human about it.

Awesome pull in the shop tonight! My Little Pony Signature. $150 card out of a $3 pack. Plenty more product available he...
10/04/2026

Awesome pull in the shop tonight! My Little Pony Signature. $150 card out of a $3 pack. Plenty more product available here.

Fraud alert! Cyrus sold us a resealed 2017 Donruss football factory set (Mahomes RC). We paid this fraud $400 for the se...
10/04/2026

Fraud alert! Cyrus sold us a resealed 2017 Donruss football factory set (Mahomes RC). We paid this fraud $400 for the set. Our customer opened it and found garbage in it. We tried to reach an agreement. I kept lowering my request for compensation, and he agreed, then refused to pay us back. We’ve paid him thousands of dollars buying Pokemon and sports cards from him and he refuses to pay us back. Watch out for making deals with him. He called me a racist and made vague threats about how he and Mario from gas me up would “take care of it”. Let us know if you have had other bad interactions with him. Thanks.

New item on the shelves. Weiss Schwarz Nikke Goddess of Victory booster boxes for sale.
09/26/2026

New item on the shelves. Weiss Schwarz Nikke Goddess of Victory booster boxes for sale.

Hello! I hate doing these posts!!! His guy made a deal with one of our vendors last night at 7pm. He paid with Venmo, th...
09/23/2026

Hello! I hate doing these posts!!! His guy made a deal with one of our vendors last night at 7pm. He paid with Venmo, then did a chargeback. In the same deal, he used a fake PSA slab as part of the payment. We need his name and any other information you can provide us.

Hello! I hate doing these posts!!! His guy made a deal with one of our vendors last night at 7pm. He paid with Venmo, th...
09/23/2026

Hello! I hate doing these posts!!! His guy made a deal with one of our vendors last night at 7pm. He paid with Venmo, then did a chargeback. In the same deal, he used a fake PSA slab as part of the payment. We need his name and any other information you can provide us.

Tuesdays are getting hotter! Lots of awesome Pokemon and other TCG available.
09/14/2026

Tuesdays are getting hotter! Lots of awesome Pokemon and other TCG available.

Sports vendors welcome and encouraged to setup. Best price for a table on Thursdays. ...
09/07/2026

Sports vendors welcome and encouraged to setup. Best price for a table on Thursdays. Come on down! Every Thursday 3-9 pm. Starting this Thursday, 2 raffles per show. Lots of prizes! Let’s support Vault Collectibles in their first show as hosts! See ya there!

09/03/2026

Steal at D9 and you’ll be famous!

A pretty cool item came into the shop today. 1990 Topps Jumbo packs. $8 each, tax included. We also have 1987 Topps Rack...
09/02/2026

A pretty cool item came into the shop today. 1990 Topps Jumbo packs. $8 each, tax included. We also have 1987 Topps Rack Packs for $4 each or $75 per box.

Address

1850 N Placentia Avenue
Placentia, CA
92870

Opening Hours

Monday 6pm - 11:30pm
Tuesday 11am - 6pm
Wednesday 11am - 9pm
Thursday 11am - 6pm
Friday 11am - 6pm
Saturday 9am - 6pm
Sunday 11am - 6pm

Telephone

+17144889706

Website

,

Alerts

Be the first to know and let us send you an email when Diamond 9 Sports posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share

Category