The Radiant Single Stone Engagement Ring, available in 14k and 18k solid gold, is a striking blend of symmetry and sparkle. With its sharp edges and clean lines, the radiant-cut center stone maximizes light reflection—bringing major shine from every angle. All Lab Diamonds over 1 CT comes with a certificate of authenticity from a recognized gemological institute (IGI). Discount codes are NOT valid on solid gold orders. We cannot accept returns on made-to-order solid gold items. Please allow up to 4-8 weeks for production time on ALL solid gold items. Don't know your ring size? Review our sizing chart below to find your best fit. Specifications - Available in sizes: 5, 6, 7, 8, 9, 10, 11, 12 & 13- Carat weight listed includes stones in band (could vary by 3-5%) - Ring Weight (can vary +/- .5 grams by size) -14K White Gold: -1 CT Sizes 5-13: 3g -2 CT Sizes 5-13: 4g -3 CT Sizes 5-13: 4g -18K White Gold: -1 CT Sizes 5-13: 4g -2 CT Sizes 5-13: 4g -3 CT Sizes 5-13: 5g