Rian's 5 Carat Princess Cut Engagement Ring 5 Carat Princess Cut Engagement Ring has a beautiful and romantic essence all to its own! This ring features a princess cut, clear CZ center stone, fastened by a prong setting. Round cut clear CZ stones surround the edge of the center stone and run along the band's exterior. This ring really shimmers and shines from every angle. Measures 27 mm x 23 mm .