Blue Simulated Opal Sea Turtle Ring Sterling Silver Size 6

I ordered 2 of these rings with in the last couple yrs,they are real 925 and was the blue similated opal ring,was delivered on time,had bought the 2nd one for my daughter for her bday and we both had instantly fell in love with the rings,they where beautiful,but after a few months my daughters stone fell out then a month or 2 right after mine had fell out also,so we both came very very disappointed the stones didnt stay in the long at all,im a real big fan of opals,ine if my favorite gems,i still where the ring all the time now without the stone,it sucks after getting the rings the stones didnt last long at all,but oh well i guess its just a 925 turtle ring now lol.