Round Diamond Hidden Halo Engagement Ring LR2835The LR2835 is an 18k white gold engagement mounting from Simon G., with a prong set pav shank and a hidden diamond halo tucked beneath the center stone. At 0. 29 carats of G H, VS2 round brilliants across the setting, the ring has enough diamond work to feel complete on its own while letting the center stone remain the focus. A thoughtful choice for a proposal where the details matter as much as the moment.