For me, a symbol that Autumn is well and truly here is the fallen bronzed oak leaves and of course the humble acorn.
 
This little fine silver acorn necklace was cast using a real acorn that had fallen in my garden in Hastings. I made a mould from it and then used that to create the 99.9% pure silver acorn. 
 
Please note this is half an acorn (hollow design) so the acorn lays flat on the chest. Comes complete on a 925 sterling silver trace chain.