diff --git a/deepdiff/commands.py b/deepdiff/commands.py
index 0543aa18..0f04a026 100644
--- a/deepdiff/commands.py
+++ b/deepdiff/commands.py
@@ -118,7 +118,8 @@ def diff(
             if kwargs["view"] in {'colored', 'colored_compact'}:
                 print(diff)
             else:
-                print(diff.to_json(indent=2))
+                json_options = {} if orjson else {'ensure_ascii': False}
+                print(diff.to_json(indent=2, **json_options))
         except Exception:
             pprint(diff, indent=2)
 
diff --git a/tests/test_command.py b/tests/test_command.py
index bbf5ada3..5e0481c9 100644
--- a/tests/test_command.py
+++ b/tests/test_command.py
@@ -1,4 +1,5 @@
 import os
+import json
 import pytest
 from shutil import copyfile
 from click.testing import CliRunner
@@ -10,6 +11,28 @@
 @pytest.mark.skipif(pypy3, reason='clevercsv is not supported in pypy3')
 class TestCommands:
 
+    @pytest.mark.parametrize('use_orjson', [False, True])
+    def test_diff_command_preserves_unicode(self, tmp_path, monkeypatch, use_orjson):
+        if use_orjson:
+            pytest.importorskip('orjson')
+        else:
+            monkeypatch.setattr('deepdiff.commands.orjson', None)
+            monkeypatch.setattr('deepdiff.serialization.orjson', None)
+        t1 = tmp_path / 'before.json'
+        t2 = tmp_path / 'after.json'
+        t1.write_text(json.dumps({'名前': '東京'}), encoding='utf-8')
+        t2.write_text(json.dumps({'名前': '大阪 😀'}), encoding='utf-8')
+
+        result = CliRunner().invoke(diff, [str(t1), str(t2)])
+
+        assert result.exit_code == 0
+        assert '東京' in result.output
+        assert '大阪 😀' in result.output
+        assert '名前' in result.output
+        assert json.loads(result.output) == {
+            'values_changed': {"root['名前']": {'old_value': '東京', 'new_value': '大阪 😀'}}
+        }
+
     @pytest.mark.parametrize('name1, name2, expected_in_stdout, expected_exit_code', [
         ('t1.json', 't2.json', """dictionary_item_added": {\n    "root[0]['key3']": "value3\"""", 0),
         ('t1_corrupt.json', 't2.json', "Error when loading t1:", 1),