This sparkling halo setting features beautiful scalloped Emerald diamonds that encircle the center gem and adorn the gently tapering band. Gold Emerald Halo Engagement Ring. Center Stone with Cubic Zirconia or Choice of Diamond. Natural Stone, Lab-Grown, or Moissanite available upon request. Available in White Gold, Yellow Gold & Rose Gold. If you have a preference, send an email to Pallotta. Custom Orders take 3-4 weeks to complete.