Katie Holmes went topless for Rio de Janeiro-based jeweler H. Stern's "Iris" collection over a year ago for the company's Israeli ads. Now, the sizzling photos from the campaign have surfaced again ahead of the launch of the company's flagship London store, which is set to open on Sloane Street later this month, according to Zimbo.com.

The 34-year-old actress shows off several of the high-end jeweler's designs in the realistic photos, which were actually shot in a New York studio by photographer Tom Munro with the help of a few buckets of beach sand.

The designs in the Iris collection are inspiredby the sea.

Katie isn't the first big name to be the face of the brand, she follows British model Kate Moss and French actress Catherine Deneuve. H. Stern has 165 stores worldwide in 12 countries.