1) Adjective for diamond 2) Adjective for diamonds 3) All the way 4) At the top of the mohs scale 5) Diamond description 6) Earnestly or intently 7) Indulging excessively 8) Into a solid condition 9) Least malleable 10) Mohs scale meaning of 10 11) Most adamant 12) Most arduous 13) Most challenging^HARDES 1) Steeliest