ER7480W44JJ from Gabriel & Co., NY.  Bridal Collection   0.95ct TDW 14K White Gold 6.5 mm Center Stone (approx. 1 ct.) Head is not changeable, but we can provide this ring for other size center gems. Contact us for a quote on modifications.   Center Stone not included in pricing nor product details.  Add one to your order and we would be happy to assemble for you, free of charge.