May we suggest:
CJ Recht Pyrite Pendant Necklace
Designed to stand out, a huge chunk of sparkling pyrite dangles from a sterling silver loop on a 28 inch long bronze chain. The mixed metals means that this goes with everything. Simply stunning – this explains is why the miners in California thought they’d found gold when they found pyrite! Also available with a sterling silver chain if you prefer. Pyrite has a magical quality – it looks silver with silver and gold with gold or bronze….So you can pick your favorite! This version is 225 as shown.