Tying a knot (DIY knot chain necklace)

I saw this Lisa Freede knot and chain necklace on Revolveclothing and was this close to buying it when it occured to me that I could probably do it myself and save some money. Also, I wanted it to be black and silver instead of black and gold. So I purchased five chains of different shapes and colors and simply tied a knot at the bottom et voilá!