Quality ring set with 1 tanzanite - blue-violet, surrounded by 8 white diamonds

Quality ring set with 1 tanzanite - blue-violet, around +-1.00CT, surrounded by 8 white diamonds, color: F-G-Exceptional white, clarity: SI - brilliant cut, total: +-1.20CT. Set in 18kt yellow gold (marked 750). Ring dimensions: +-18mm by 15mm

Estimation
1,500€ - 2,500€