This is the trademark of the world-famous brand Bulgari. This is a necklace from Bulgari. I also have a necklace like this that was given to me by someone else. I don’t know the price. It looks very classy when worn ( I don’t know if this is what you want, but I still looked for it.) If the necklace turns yellow, I have a trick. You can clean it yourself with toothpaste at home, or soak it in Coke. If it is still not white enough, you can buy it. Let them clean the necklace. I hope this answer can help you!