Necklace

Necklace:
The necklace has a delicate chain with a series of silver-plated elements, some adorned with white American Diamonds/Cubic Zirconia, and others holding tear-drop shaped purple stones. The central pendant is a larger rectangular purple stone surrounded by white stones, creating a focal point.
Earrings:
The earrings are drop-shaped, mirroring the design elements of the necklace, with white stones and a matching purple stone at the bottom. 
Finishing:
The set has a polished, silver-plated finish, giving it a bright and reflective appearance. 
The stones are likely rhinestones or cubic zirconia, providing a sparkling effect. 
Material:
The base metal is likely brass or high-quality copper, which is then silver-plated.
Stones:
The purple stones are likely Alexandrite Purple cubic zirconia or similar rhinestones, while the white stones are white cubic zirconia or American Diamonds.