Solitaire ring 0.56ct lab-grown diamond 18K white gold

Solitaire ring in 18K white gold with a lab-grown brilliant-cut diamond weighing 0.40 Carat and 16 natural brilliant-cut diamonds with a total carat weight of 0.16. The ring weighs 2.90 grams and measures 1.70 millimeters in width and 1.97 millimeters in height.