user: Question: Which Brilliance Grade has a Benchmark of Practical Fine Cut?
Columns: ['Benchmark', 'Crown height', 'Pavilion depth', 'Table diameter', 'Girdle thickness', 'Crown angle', 'Pavilion angle', 'Brilliance Grade']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['American Standard', '16.2%', '43.1%', '53.0%', 'N/A', '34.5°', '40.75°', '99.5%']
SQL:

assistant: SELECT "Brilliance Grade" FROM "Table" WHERE "Benchmark" = 'Practical Fine Cut';