This gold tone Bottega Veneta chain loop necklace is crafted from oversized links and secured with a ring and a branded post fastening. 'The missing link in cosmology is the nature of dark matter and dark energy,' theorised Stephen Hawking. Whilst this statement has gone over our head slightly, we can appreciate a missing link to be a frustrating matter - especially when it's in the form of this Bottega Veneta chain.