The stones are beautiful. Love the colors and the feel.
I think the elastic is too flimsy; not strong enough. I believe it will stretch out too much with wear.
I design and make ballet and production tiara's, but mostly use wire of various weights. I sometimes use elastic, like the one used on the Mala, but the elastic I use is a bit more sturdy. Just as flexible, but stronger weight.
Overall the stones are gorgeous, feel is lovely, but I am concerned with the elastic being too light weight. ...