The ring is thought to be an Asscher cut diamond, which are built to highlight and enhance a gem’s natural details with the help of a high crown and a deep pavilion.
We go on to assume these are good things.
The two married in 2011, after William proposed in Kenya.
And nine years later, this royal couple couldn't look happier!
And One for the Sister, as Well
Kate's sister Pippa now has her own ring, thanks to hedge fund manager James Matthews.
The two announced their engagement in 2016, got married in 2017, and became parents to little Arthur Michael William Matthews in 2018.
The Biggest Ring for the Biggest Star
She's one of the names that we aren't allowed to forget, and in 2013, Kim Kardashian West got a promise from a similarly big name.
Kanye proposed, and Kim said yes, making it her third marriage.
This one has so far stood the test of time, and the ring is a huge and clear Lorraine Schwartz ring.
The two are now parents, and for all intents and purposes, seem happy together.