And the couple sealed the deal (again) with matching Tiffany & Co. diamond eternity bands. Featuring a full circle of diamonds set in platinum, the rings retail for $8,200 to $20,500 each ...

One of the pieces Beyoncé is rocking is a Tiffany & Co. engagement ring in platinum with an internally flawless, round brilliant diamond of over 10 carats, as well as pieces by legendary Tiffany ...