Mid-Century Chrysophase Cocktail Ring in 18k Yellow GoldMid Century Chrysophase Cocktail Ring in 18k Yellow Gold. This chic Mid Century cocktail ring features an opaque, 6. 86 carat chrysoprase stone in 18k yellow gold. The tone of the natural chrysoprase is soft fern green. The polished cabochon cut gem rests in a setting of 18k yellow gold. The embellishments of the ring resemble wide petals with complementing accent diamonds at each side of the gallery. The two accent diamonds weigh . 04ct each. The