gold ring with diamond and sapphire

An 18 carat yellow and white gold three stone ring with a natural unenhanced cushion cut blue sapphire (3.91 carat, basaltic origin) with a cushion cut diamond on each side (each app. 0.85 carat, I, Vs-Si), Swiss.

weight: 5.22 grams
ring size: 17.25 mm / 7 US