Kathryn Money of the jewelry company Brilliant Earth told Money that Markle's engagement ring is roughly 6.5 total carats, with the center stone being around 5 carats.While stunning, this is comparatively simple, especially when contrasted with Princess Diana's ring, the center sapphire of which is an astonishing 12 carats, surrounded by 14 diamonds. Keep your child's online experience safe, fun, and productive with Qustodio Amazon Top Seller: Echo Dot (3rd gen) - Smart speaker with Alexa Amazon's Choice: The Only Anti-Aging Vitamin C Serum You'll Need