Protect Your Collection, Diamond Service Grading

DSG sets the industry benchmark for trust & confidence with fast, accurate & transparent grading for collectors, investors & enthusiasts. Get your cards graded today!

Protect Your Collection, Diamond Service Grading

What is the Smallest Size Available for Certified Diamonds?

Learn How to Buy a Diamond with the GIA Diamond Buying Guide

How to Check Pokemon Card Value and Appraise Your Collection - IGN

Certified & Affordable Lab Grown Diamonds

Mitsubishi Service & Parts Department, Morgantown, WV Mitsubishi dealer in Morgantown WV

Standard Grading - Diamond Service Grading

How to protect yourself when submitting cards for grading.

DSG Grading Scale, Learn Our Grades