GIA Certified vintage 5.83 carat black opal and diamond halo ballerina ring in platinum 900. Featuring a center stone that is absolutely captivating, bearing tremendous color, luster, uniformity and no enhancements of any kind. To match the center stones opulent aura, 1.02 carats of white diamonds placed in a halo setting adorn this precious gem. Thirty-six diamonds feature a baguette cut, and eighteen are round cut. GIA Certified and ring size 7 (adjustable.)