In a large bowl, combine the chopped tomatoes, cucumber, bell pepper, red onion, and minced garlic. Reserve some of the diced vegetables for garnish if desired.
Transfer half of the vegetable mixture to a blender. Add 1.5 cups of tomato juice, olive oil, red wine vinegar, cumin, salt, and pepper. Blend until smooth. For a chunkier texture, blend less or pulse a few times.
Pour the blended mixture into a large bowl. Then, add the remaining half of the chopped vegetables. Stir in the rest of the tomato juice to reach your desired consistency. Adjust the seasoning with more salt, pepper, or vinegar as needed.
Cover the gazpacho and refrigerate for at least 2 hours, or overnight, allowing the flavors to meld.
Ladle the chilled gazpacho into bowls. Garnish with fresh herbs and any additional toppings you like, such as croutons or diced avocado.
Serve your refreshing gazpacho with crusty bread or as a light appetizer!