I like using colorful leather cords with gemstones. I was excited when I saw the supply of leather cord that now comes in all the colors you can think of - I make sure the supplier uses a dye-free paint. The leather cord also provides good support to bigger, heavier stones such as these large turquoise and these large onyx round stones. These pieces have some weight on them, but the leather, I think, is comfortable on the skin/neck rather than a metal or chain. I just kept the cord all around without putting any clasp or toggle - certainly has a cleaner look - and easy and quick to put on!