| Material Property |
Grade 23 Titanium |
Why It Matters |
| Nickel Content |
Maximum 0.13% (ASTM F136) |
Eliminates allergic reactions; safe for sensitive skin and metal-allergic individuals. |
| Biocompatibility |
Implant-grade; meets medical device standards |
Approved for long-term tissue contact; minimises rejection and infection risk. |
| Corrosion Resistance |
Excellent (superior to surgical steel) |
Won't rust, discolour, or degrade with daily wear, water exposure, or sweat. |
| Weight |
Lightweight (half the weight of steel) |
Reduces stress and tension on healing or sensitive piercing channels. |
| Durability |
Extremely hard; scratch-resistant |
Maintains lustre and structural integrity through years of daily wear. |
| Anodisation |
Electrochemically applied colour (not plated) |
Colour is permanent and hypoallergenic; won't chip, fade, or peel with normal use. |
Why Grade 23 Over Other Materials? While surgical steel is common, G23 titanium offers superior biocompatibility for sensitive piercings, eliminates nickel risk, and provides a lighter, more comfortable fit. Solid gold is excellent but significantly more expensive; G23 delivers implant-grade safety at an accessible price point.
| Gauge Designation |
Actual Thickness (mm) |
Common Piercing Types |
How to Measure |
| 20G (Smallest) |
0.8mm |
Delicate nostril piercings, fine ear piercings |
Use a digital calliper or ask your piercer to measure the bar thickness of existing jewellery. |
| 18G |
1.0mm |
Standard nostril piercings, some helix/tragus |
Position the calliper jaws around the jewellery bar and note the measurement. |
| 16G |
1.2mm |
Septum (common), daith, helix, tragus |
For new piercings, ask your piercer what gauge they used during the piercing procedure. |
| 14G (Thickest) |
1.6mm |
Septum (standard), stretched piercings, bold helix |
Thicker gauges provide visual impact and stability in larger piercing channels. |
Inner Diameter Guidance: The inner diameter (6mm–12mm) is the space inside the ring where your piercing sits. A snug fit (2–3mm larger than your current jewellery) ensures comfort without excessive movement. If you're between sizes, err toward the larger diameter—a slightly loose ring is more comfortable than one that's too tight.
Measurement Tips: Use a ruler marked in millimetres, or request that your professional piercer measure your exact piercing diameter. Take measurements from the inside edge of your piercing opening to the opposite side, straight across the centre.