Montblanc launched its new diamond jewelry collection on Friday with a glittering celebrity gala and fashion show in a specially built ice palace in the French ski resort of Chamonix, at the foot of famous Mont Blanc mountain, between France and Italy.

The new diamond line is the first-time entry into high-end jewelry by Mont Blanc, a leading luxury products brand known for its fine pens and watches.

Some 200 international VIP guests partied together with Lutz Bethge and Wolff Heinrichsdorff, managing directors of Montblanc International, at “The Night of Stars” gala in ice palace built of 180 blocks of transparent ice. Among them were actresses Lucy Liu, Naomi Watts, Juliette Binoche and actor Christopher Lee. Together, they drank champagne, dined, and enjoyed the singing of British opera star Katherine Jenkins, a Montblanc brand ambassador.

A highlight was the catwalk show. Five top models—Naomi Campbell, Lily Collins (daughter of Phil Collins), Franziska Knuppe , Nieves Alvarez , and Mary Ma—presented both the new “Montblanc Diamond Jewelry Collection” and the exclusive “Montblanc is celebrating Red Carpet Moments” pieces. Naomi Campbell wore the most precious ensemble: the necklace and earrings “Etoile” (“Star”), worth almost $4 million.

JCK