Sam J.
5/12/2025
They have the best slabs in the business, UV protection and they look the best. Their grading is spot on with a bar code that gives you a report on how the card got the grade. What else can you...
Diamond Service Grading
(4)
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5681 Redwood Dr Ste 12B
Rohnert Park, CA 94928
Diamond Service Grading, established in 2021, is dedicated to providing accurate and reliable grading services for trading cards, ensuring collectors receive top-notch quality and value. With a focus on affordability and customer satisfaction, the company continually enhances its offerings while maintaining competitive prices.
Their innovative grading system includes a comprehensive report detailing card conditions, complete with high-quality imaging and a unique card ID for easy identification. Additionally, their durable polycarbonate holders offer superior protection against damage and UV light, making them an ideal choice for preserving collectible trading cards.
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Reviews
5.04 reviews
Ana F.
5/19/2024
I've been seeing more and more of the DSG slabs in dealer cases. Picked up a collection recently with a handful of cards graded by Diamond Service Grading as well, so I was over the moon to meet...
David B.
2/24/2025
DSG is an extremely underrated and professional grading company. Their slabs are without a doubt unmatched to any grading company. They without a doubt have the best encapsulations in the entire...
Hank V.
8/12/2024
A very high quality product! Slabs are crystal clear, exceptionally durable, and UV protected. Great customer service and very fast turnaround! Very happy with DSG and will use them often for my...
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