Ancient bracelet

Hello!

This item is bracelet which our grandma found in the sand, long time ago.
I have already heard some thoughts from local expert, but I'd like to hear opinions from others.

Material: it has been said that material is sterling silver (alloy of silver containing 92.5% by mass of silver and 7.5% by mass of other metals, usually copper)
Age: It has been estimated that bracelet was manufactured at the end of 16 century.
Style: it has been said that it is oriental style
Form: oval
Condition: solid
Dimensions: outer(8cm x 7cm), inner(6cm x 5cm), height: 3,5 cm
Remark: stones are not original - just for illustrative purpose
 

Is it possible to estimate value?

How much is it worth on today's global market?

Thanks in advance and best regards,

 Bojan

Fair