For sale is this pretty and rather unusual, 18k white gold ring set with diamonds and a natural cushion cut emerald. The setting measures 5/16" from north to south and is set with eight small diamonds and a 0.20 point natural emerald. The setting has yellow gold trim and a wonderful filigree gallery. It is currently a size 5, weighs 1.6 grams and is in excellent condition. In my more than 30 years of selling antique jewelry, I've never seen a filigree ring quite like this one.