
Diamond Service Grading
Trust us for accurate card grading. Submit now and elevate your card's value with precision.

Trust us for accurate card grading. Submit now and elevate your card's value with precision.
I had a great experience with DSG. I found them after picking up one of their slabs in a trade. The slabs are very nice,look great and definitely feel more durable and heavy duty than my PSA slabs. I love the grading reports that break down why your card graded the way it did. Their service was prompt and my cards were graded and shipped back to me in the exact time frame promised(10 buisness days). I hope they gain some much deserved recognition in the hobby. I will definitely use DSG again for my grading needs in the future.
5800 Redwood Drive
Rohnert Park, CA 94928
United States
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Thank you all at DSG!!! Absolutely phenomenal!!! Slabs are immaculate. They are airtight, nearly indestructible, as well as infused with uv resistance. The .5 system means, a more accurate grading assessment. It uses professional human and computer algorithms to help assess the grading process. Instead of guessing why my cards came back better or worse than I thought, I can check it out on my own. That is amazing. I hate the guessing game. The turn around time is so fast. I posted pictures. Im sure you can tell, since my first slab from DSG, I have been impressed. I will add the Star Trek set slabs I have in when it comes back to me!
My experience with DSG was great. I sent in my Pokémon card and I got it back about 3 weeks later! Faster than what their standard time is listed at. Their customer support was great. I emailed at midnight once, and got a response just 5 minutes later! I emailed them a couple other times and they always responded within a reasonable amount of time. Their grading process/algorithm is pretty cool. It shows you exactly why your card got the grade it got. The custom label and encapsulation looks amazing. My card is in terrible condition so it wasn’t a surprise that it got a 1. I’m just glad it has a good looking home now. Thanks DSG!