18 KT White gold engagement ring The center is 1 Brilliant Round Cut Diamond, Total Weight .77 CTS, F color, SI2 clarity, GIA CERT 14212087 Halo diamonds around the center stone and down the side of the band, all combined have a total weight .52 CTS, ranging in G-H color, SI1-2 clarity, 4.00 GRAMS The center diamond is an Eighternity diamond: Unique 81-facet design Same diameter and carat weight as signature ideal round brilliant cut diamond Double-headed arrows and beautiful flower pattern when viewed from the top with a special viewer, even when the stone is mounted Higher brightness, scintillation and light dispersion, as verified by independent laboratory Certified by the Gemological Institute of America (GIA) and other accredited laboratories Certified Eighternity diamonds are micro-laser inscribed with the Eighternity logo (Comes with special viewer) All Eighternity diamonds are responsibly cut and polished in the United States of America, using only conflict-free untreated natural diamonds