In this case, the brooch features a simulated yellow citrine as the main stone with a cushion cut. "Simulated" indicates that the citrine is not a genuine gemstone but is designed to imitate the appearance of yellow citrine. The 3.00 carats refer to the weight of the simulated citrine. Additionally, diamonds are mentioned as additional stones, though the cut and weight are not specified. The brooch is designed in the style of a bird, and the metal used is described as having a 14K yellow gold finish, suggesting that the base metal is not solid gold but is another metal with a layer of 14K yellow gold.