Grade 23 titanium Lab-grown Opal Bezel-set Threadless 3mm Lobes! Titanium studs are sold as pairs. The PREMIUM Bezel-Set Opal Studs are a simple yet high-quality pair of earrings! The design best suits earlobe piercings. These are made especially for sensitive skin. These earrings are grade 23 solid titanium, so they are hypoallergenic and bio-compatible. Bio-compatible titanium resists wear and tear from bodily fluids. As a result, titanium's popular use in medical implants. Polished titanium is key for body jewelry. Because of this, all our titanium jewelry is always mirror polish. This is because titanium is porous. And while porosity is great for implants, it's terrible for body jewelry. Titanium gets its colour through Physical Vapour Deposition (PVD). In other words, vapour deposits onto the metal. As a result, the titanium looks gold, rose gold, or black. However, gold and rose gold PVD may irritate metal allergies. Our opals are lab-grown. Lab-grown opals are superior for body jewelry. Firstly, they're more durable than natural opal. Secondly, they're safe in an autoclave. Thirdly, lab-grown is ethically sourced. Additionally, they come in a stunning selection of vivid colours. These PREMIUM Bezel-Set Opal Studs are 20g and will fit comfortably in any standard ear piercing. You can easily secure the backing with a grade 23 titanium butterfly back. These studs are a classic look. Show us how you chose to wear yours with #BodyModsFamous on Instagram. We LOVE seeing our jewelry out in the real world. Don't forget to follow us on and for updates on new jewelry, product info, sales, and more.