Create a high-quality, detailed image of a mystical roman medallón

Create a high-quality, detailed image of a mystical roman medallón. The medallón should have an ancient Roman design, symbolizing its connection to the era of Valeria Mesalina. It should be round and made of gold, with intricate engravings and a slightly worn appearance, indicating its age. In the center of the medallón, there should be a glowing, blue gemstone that emits a faint light, hinting at its magical properties. The edges of the medallón should be adorned with small, detailed symbols and Roman numerals, representing its ability to manipulate time. The background of the image should be a dimly lit, ancient Roman room, with faint shadows and warm, golden lighting that highlights the medallón's details. The overall atmosphere should be mystical and historical, with a sense of wonder and ancient power."