2.15 Art Deco Diamond Engagement Ring in Platinum.  This gorgeous Art Deco engagement ring features 2.15 carats of Old European cut diamonds finished in shimmering platinum. The primary diamond is a 1.08 carat OEC gem. Set on an elegant bypass band, the accent stone is a 1.07 carat OEC diamond. Both diamonds are prong set and feature a faint, warm hue. The glittering facets of both diamonds allow for a beautiful amount of fire and bring a stunning contrast to the icy platinum band. From the profile, the engagement ring has an ornate Art Deco basket mounting with engravings that decorate the shoulders of the band.