Final answer:
The highest cutability grade for lamb is Prime, which signifies the best quality of meat with desirable characteristics such as lean meat, marbling, and tenderness.
Step-by-step explanation:
The highest, or best, cutability grade for lamb is Prime. Cutability refers to the proportion of meat in comparison to the total weight of the carcass, including bones and fat. It's an important factor in determining the quality and value of the meat. When grading lamb, there are several categories, with Prime being the highest quality, indicating the most desirable level of lean meat, marbling, and overall tenderness. The grades in descending order of cutability and quality are Prime, Choice, Select, and Standard.
Grade Choice represents the highest quality of lamb meat in terms of tenderness and juiciness. It is typically more marbled and has a better flavor compared to other grades.