Rene Boivin Knot Vintage Necklace 18k Gold Retro JewelryA yellow gold choker necklace was among the new trends introduced by Rene Boivin brand in 1920s. The genre of the gold knotted jewelry that became a hallmark of Boivin was inspired by the decorative look of the furniture cords. This rope design vintage knot necklace made of 18k gold accented with two rows of diamond on each end. The original double front knot seats nicely on a neck, making a great statement without adding any loud details.