Nuala Threadless End. Nuala is solid 14k gold, and is offered in yellow gold, rose gold, and white gold and measures 4.70mm x 4.70mm. Nuala has seven 1mm Swarovski Crystals embedded in a unique symmetrical pattern. Use this piece as part of a complex curation, or make it the star of the show! Big on shine and guaranteed to make the wearer feel like Bethmooran royalty.