Brazilian supermodel Gisele has decided to sell off two of her personal items of jewelry, and there are rumors that one or both of the pieces could have been gifts from "Titanic" star, Leonardo DiCaprio. Bundchen and DiCaprio split in 2005, but were together for nearly 4 years. The model is now dating New England Patriots football player Tom Brady.

The items, for sale at Christie's "Jewels: The New York Sale" on October 15 in New York, include a 3.35-carat colored Sabbadini diamond ring, which is expected to fetch $15-20,000 and a 6-carat diamond pendant necklace, worth $120-150,000. Some of the funds of this sale will be headed for the Russell Simmons-co-founded charity, Diamond Empowerment Fund.

In our gallery, you can see photos of why Gisele earned $33 million in 2007.