DeKara Designs Collection Art Deco Inspired Extremely Elegant Handmade Oval Cabochon Moonstone Engagement Ring. Metal- 18K Yellow Gold, .750. Stones- 1 Genuine Oval Cabochon Moonstone 19.67 Carats. Size- 8 3/4. FREE SIZING An Amazing One of a Kind Entirely Handmade Cabochon Huge Moonstone Engagement Created in 18K Yellow Gold. The ring features a beautiful high quality and clarity oval cabochon moonstone that is a whopping 19.67 carats! The moonstone is gracefully and professionally bezel set