925 Sterling Silver and Possibly Tourmaline ? Pendant Green Pink

Sterling Silver Pendant which is marked 925 with Green, blueish and Pink colored stones- I’m unsure what the stones are but I have been told they may Possibly be Tourmaline-but I’m not sure if they are anything good or not. This has been worn a lot and shows all over wear including scratches, dents and other imperfections to the stones and setting and this shows other signs of use/wear/storage. The stones have flaws and imperfections and are cloudy but it’s still a pretty pendant. Measurements are rough approximate measurements and colors may be off because of lighting.