Three Stone Diamond Navette Ring in PlatinumThree Stone Diamond Navette Ring in Platinum. This diamond navette ring features three genuine natural diamonds in a platinum band. The primary, Old European cut diamond weighs . 75ct. With a high crown and deep pavilion, the center diamond showcases a glittering effect from within the nearly colorless stone. At the peaks of the pointed oval shape are two . 10ct genuine natural diamonds that are slightly warmer than the primary stone. The gallery and