14K White Gold Baguette Halo Diamond Necklace. This halo diamond necklace features a classic emerald cut diamond halo silhouette designed with a cluster of 5 baguettes, accented by a round diamond halo. Features 1.00cttw of G color and SI clarity diamonds with an 18 inch 14K white gold cable chain with bezel set diamonds and lobster claw clasp. 1B