BEYONCE was lucky her neck didn’t give out during her Phantom of the Opera performance.

The honking Swarovski crystal necklace she wore on stage was the same piece of custom-designed jewelry Emmy Rossum sported in the lavishly costumed musical movie.

In fitting diva fashion, the necklace was flown from Paris to L.A. especially for its Oscar moment.

The Swarovski neck chain may have been Oscar’s largest bauble, but it wasn’t the only eye-catching dazzler as Hollywood’s leading ladies burned up the red carpet with decadent heepings of ice swinging from their collarbones, ear lobes and wrists.