A pendant that is part of the fashion jewelry category, featuring a diamond as the main stone and set in platinum. The specific details you provided include a triangular shape for the pendant and a main diamond with a weight of 2.05 carats. This sounds like a stylish and elegant piece of jewelry. Triangular-shaped diamonds can add a unique and modern touch to the design. Platinum is a popular choice for setting precious stones due to its durability and lustrous appearance, making it a preferred metal for high-quality jewelry.