Uneek Onda Round Diamond Engagement Ring with Cushion Halo, Pave Double Crisscross Upper Shank and Under-the-Head FiligreeThe Onda diamond engagement ring from Uneek has a truly enchanting look thanks to its distinctive crisscross upper shanks lined with U pave set diamonds. At the center of this engagement ring, an impressive 1 carat round diamond is surrounded by a delicate diamond halo. For a stunning surprise, peek under the head to see a remarkable filigree inspired by undulating ocean waters as well as two more round diamonds.