A marriage certificate

Based on Uber’s recently released Lost & Found Index, you’re most likely to leave something behind in an Uber on a Saturday, and our friends in Melbourne, Victoria, are the most forgetful in the country. The items people are most likely to forget include phones, keys, wallets, headphones, glasses, bags or backpacks, e-cigs, headphones, and IDs. But some poor souls left behind their marriage certificate – which would make their marriage impossible.
A bridal veil

Left by a bride-to-be? Or after the ceremony on the way to the honeymoon? Only she and her Uber driver know for sure.
A 1.3-carat round diamond

Another potential wedding or marriage snafu: Did it fall out of a ring? Or was it being taken to the jeweller for a setting? Either way, this one would really hurt – Uber doesn’t say whether the proper party recovered it.