The ring appears to have an emerald-cut diamond center, flanked by two smaller side diamonds. Caitlin is a Disney fan, so John proposed in Disneyland with giant signs of Sebastian the crab from 'The Little Mermaid' that said, "Go on And Ask The Girl" instead of the lyrics from "Kiss the Girl."
The newly engaged couple were recently spotted at the "mothers2mothers and The Elizabeth Taylor AIDS Foundation Benefit Dinner" on October 24, 2017 in Los Angeles where Caitlin adorned her platinum engagement ring on the red carpet.
One of the rarest metals on the planet, platinum is a beautiful expression of the sole commitment among the couple.
Platinum is a naturally occurring white metal; from the time that it is mined, till the final product this pure metal is absolutely white. The natural colour of this rare metal does not fade nor tarnish with time. It is a durable, dense and strong metal so it feels more substantial to the wearer as compared to other metals. (ANI-NewsVoir)