9. Diamond, Three Carat
Wearer: Pippa Middleton
As of 2016:
Value Estimated: $304,087*
Before Pippa Middleton married James Matthews in the spring of 2017, they enjoyed a quite low-key engagement. Pippa’s engagement ring, however, was one aspect of the whole affair that was not subdued. The enormous three-carat diamond was worth more than $300,000. The central Asscher diamond has royal provenance.

Three-Carat Diamond ©Getty Images/Alex B. Huckle
Given that Joseph Asscher created the diamond’s cut in 1902, it has a royal link. Asscher established a renowned diamond-cutting business and crafted jewelry for Queen Juliana of the Netherlands. Even now, more than a century later, asscher-cut diamonds are typically connected to riches and aristocracy.
