`carat` Nullable(Float64), `cut` Nullable(String), `color` Nullable(String), `clarity` Nullable(String), `depth` Nullable(Float64), `table` Nullable(Float64), `price` Nullable(Int64), `x` Nullable(Float64), `y` Nullable(Float64), `z` Nullable(Float64), `__index_level_0__` Nullable(Int64)