The phrase "royal touch" typically refers to a special ability attributed to monarchs where they could supposedly heal people by laying their hands on them. However, there are many other words that can be used to describe a similar sense of regal elegance or grandeur. Some synonyms for "royal touch" might include words like majesty, grandeur, opulence, luxury, magnificence, splendor, regality, sovereignty, nobility, and greatness. These words all evoke a sense of majesty, power, and grandeur that are often associated with royalty, and are great options for describing anything that exudes a sense of grandeur and luxury.