Craft a futuristic, full-body portrait of Amethyst, Princess of Gemworld, from DC Comics. The character should be portrayed in a realistic style, with a suit that fuses elements of magic and advanced technology. Her costume should reflect her royal heritage with regal and mystical motifs, enhanced with futuristic details that could suggest advanced magical capabilities. The colors should be rich and gem-like, maintaining the purple theme associated with her name. Amethyst's stance is powerful yet graceful, embodying her role as both a princess and a warrior. The background should be an ethereal and high-tech version of Gemworld, blending elements of fantasy and science fiction.