Where can I find a necklace like this?

[phonebox]

I'd just like a simple pendant for everyday wear that doesn't end up swinging by my waist and isn't ridiculously bling-y looking.

Does anyone know where I can find something similar?

This Stella and Dot pendant is nice. They have it in gold too

m&s
asos

There are usually quite a lot on ebay.

m.ebay.co.uk/sch/i.html?_nkw=gemstone+disc+pendant&isNewKw=1&mfs=GOCLK&acimp=0&trksid=p2053742.m2428.l1313.TR0.TRC0.Xgemstone+disc+pendant&sqp=gemstone+disc+pendant
Sorry can't filter properly as phone misbehaving.

Look at Shona jewellery on notonthehighstreet.