The ASTM F-136 Titanium Prong-Set Natural Stone Internally Threaded Top M0.9 (16G) brings understated elegance and organic beauty to curated piercing setups. Featuring a genuine natural stone secured in a clean prong setting, this top offers a refined balance of simplicity and character.
Implant-Grade ASTM F-136 Titanium
Crafted from ASTM F-136 implant-grade titanium, this top is hypoallergenic, nickel-free, and corrosion-resistant — making it suitable for sensitive skin and long-term wear.
Natural Stone Feature
Each piece is set with a real natural stone, offering subtle variation and organic depth. Available stone options include:
• Rose Quartz – soft, calming pink tones with a gentle glow
• Black Onyx – bold, deep black with a sleek, modern finish
Prong-Set Design
The stone is secured with a minimalist prong setting, allowing light to interact naturally with the surface while maintaining a clean, low-profile silhouette.
Secure Internal Threading
Designed with internal threading for smooth insertion, a secure fit, and reduced irritation — trusted for professional piercing applications.
Size Options
Available stone sizes:
• 2.5mm
• 3mm
Both stone colours are available in both sizes.
High-Polish Comfort Finish
Finished to a smooth, mirror-polished surface for enhanced comfort, reduced friction, and a premium aesthetic.
Ideal Placement Options
Perfect for refined placements such as:
• Helix
• Flat
• Tragus
• Lobe
• Conch
• Other internally threaded piercings (anatomy dependent)
Studio & Retail Ready
A versatile natural stone top ideal for minimalist ear builds, grounding accents, and professional piercing studio collections.





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