Quality ring with 1 London blue sapphire of +-2.70CT surrounded by diamonds

Quality ring with 1 London blue sapphire of +-2.70CT surrounded by diamond baguette + brilliant cut total: +-1.80CT, color: D-F and clarity: VS. Set in white gold 18kt (marked 750). Ring size: 52-54

Estimation
4,000€ - 5,000€