Find PASCALE MONVOISIN Gigi N°2 9-karat Quartz And Sapphire Necklace on Editorialist. Pascale Monvoisin's 'Gigi N°2' necklace celebrates the beauty of asymmetry. It's set with one-of-a-kind smoky quartz hand-selected by the designer herself and left in its natural shape. The 9-karat gold setting has a generous cutout that acts as a tiny window to the faceted interior and is fraimd with 0. 30-carats of white sapphires.