Wagyu beef is graded on two main scales: the Beef Marbling Standard (BMS) which scores marbling from 1–12, and the USDA grading system (Select, Choice, Prime). Japanese Wagyu uses an additional letter+number system (A5 being the highest). Understanding these grades helps you know exactly what you are buying and whether the price matches the quality.
The BMS Scale
The Beef Marbling Standard (BMS) is the most precise measure of wagyu quality. It scores the visible intramuscular fat on a scale of 1 to 12.
Prime Cuts Texas American Wagyu typically falls in the BMS 6–9 range — significantly above USDA Prime but more accessible than Japanese A5. This is the sweet spot for most steak lovers: extraordinary marbling at a reasonable price.
USDA Grading
The USDA grades beef on a three-tier system based on marbling and animal maturity:
American Wagyu often exceeds USDA Prime in marbling. The USDA system was not designed for Wagyu-level marbling, which is why the BMS scale is more useful for comparing wagyu products.
Japanese A5 Grade
The Japanese grading system uses a letter (A, B, or C for yield) and a number (1–5 for quality). A5 is the highest possible grade — it means maximum yield and maximum quality across four criteria: marbling, meat color, fat color, and firmness.
Japanese A5 Wagyu is the most marbled beef in the world (BMS 8–12) and commands prices of $100–$300+ per pound. It is a fundamentally different eating experience — almost more fat than lean — and is typically served in small portions.
American Wagyu from Prime Cuts Texas offers BMS 6–9 marbling at $12–$85 per cut. For most people, this level of marbling delivers the rich wagyu experience without the extreme price or intensity of A5.