Hello! Wedding ring sizes can vary depending on the country or region where they are being measured. In the UAE, ring sizes are typically measured in millimeters or using the British/Australian ring sizing system.
Since your partner's ring finger size in the Philippines is 16, you can use a ring size conversion chart to determine the equivalent size in the UAE. A size 16 in the Philippines is approximately equivalent to a size 56 in the UAE. However, it is highly recommended to visit a jeweler in the UAE to get an accurate and precise measurement of your partner's ring finger to ensure the perfect fit for the wedding ring.
It's always best to have the ring size measured in person to avoid any issues with the fit of the ring. I hope this information helps, and congratulations on your upcoming wedding!