Ceylon sapphire diamond ring

18 K white gold ring with one dark blue Ceylon sapphire in the middle of the four double-pronged setting (approx. 4.45 ct), surrounded by 20 marquise-cut diamonds (total approx. 1.4 ct, W, VVs). Gross: 7.9 grams. Size with two ball reducers: 55.

With gemstone certification and GRS certification for the sapphire. .