Large ring with 1 large blue topaz surrounded by 10 blue topazes + 10 small yellow sapphires and 10 brilliants

Large ring with 1 large blue topaz surrounded by 10 blue topazes + 10 small yellow sapphires and 10 brilliants color: I and clarity: VS set in pink gold 18ct. (hallmark 750) in total topaze 10.30cts. (marked) ring +- 21 mm by 18,50 mm. size: 53-56

Estimation
2,000€ - 2,500€