Rating: AB. Condition description: Main body: the ring is slightly scratches and discoloration.. Material: Yellow gold (18K) Peridot Tourmaline. This exquisite Bulgari Tubogas ring showcases the brand signature design Crafted from 18k yellow gold it features vibrant red and green tourmaline gemstones creating a luxurious and eyecatching piece perfect for formal occasions. Crafted from 18k yellow gold. Features vibrant red and green tourmaline gemstones. Showcases Bulgaris iconic Tubogas design. Perfect for formal events. A luxurious and eye. catching piece of jewelry.