1.50 Antique Green Jadeite Cocktail Ring in PlatinumThis Art Deco antique cocktail ring features a 1. 50 carat oval cabochon cut green jadeite set in platinum, accented by 26 single cut diamonds totaling . 26 carats. The cabochon cut gives the jadeite a smooth, domed surface without facetslight doesn't sparkle off it the way it would a faceted stone, but instead glows softly from within. Green jadeite ranges from pale mint to deep emerald tones, and the translucency of the stone affects how light moves