A separate necklace in 14k gold. All of them are elegant, fine necklaces. The 1.1 mm ‘anker necklace’ is a bit lighter and refined than the 1.3mm. I would choose depending on the pendant. The 1.3 mm can carry a heavier pendant, but the 1.1mm is also strong.
A ‘bamboe necklace’ has the same chain, but also has larger golden beads divided over the chain.