Gisele Bundchen has so much jewelry, that she can afford to part with some of them. On October 15th, she's participating in Jewels: The New York Sale at Christie's, in which she'll auction off a 3.35 carat colored Sabbadini diamond ring that's expected to fetch between $15,000 to $20,000 as well as a 6 carat diamond pendant necklace worth between $120,000 to $150,000.
The sparklers are rumored to be gifts from a famous ex (Leo??) but Gisele is keeping mum on the subject. Check out more of the jewelry up for bid at the sale, including the famous Ponahalo diamonds, at