This is a replica of the video game Devil May Cry 5 Nero's necklace pendant that he wears in the game. Does not include the gemstone. Files for pendant are hosted for free for personal non commercial usage on Myminifactory.com. Pendant wings available on Shapeways for those without a printer looking to get a print of the pendant for cosplay or everyday wear.
Gemstone:
https://www.shapeways.com/product/RH4RDH5ES/dmc-5-nero-pendant-gemstone
Bead:
https://www.shapeways.com/product/6F9LUNG66/dmc-5-nero-pendant-bead