S925 Sterling Silver Geometric Marquise Natural Stone Black Rutilated Quartz Flat Thread Ear Cartilage Stud. This features a sleek geometric marquise design with genuine black rutilated quartz, known for its unique needle-like inclusions. Crafted from premium S925 sterling silver, it offers a hypoallergenic and durable wear. The practical flat-back thread post ensures secure and comfortable placement for cartilage, helix, or lobe piercings. Its minimalist yet bold aesthetic makes it a versatile accessory, perfect for adding an edgy, spiritual touch to any outfit. Ideal for daily wear or special occasions, this piece combines healing crystal properties with contemporary jewelry trends for a sophisticated look.