16 Gauge Hypoallergenic Gemstone Flat Back Stud
✓ Waterproof ✓ Hypoallergenic ✓ Tarnish Free
Add a colourful sparkle to your piercing with this Surgical Steel Gemstone Flat Back Stud. Its polished silver-toned setting is available with a clear, aurora or pink 4mm cubic zirconia top.
✨ Why You’ll Love It
✓ Three Crystal Colours: Choose from classic Clear, iridescent Aurora or soft Pink to complement your jewellery collection.
✓ Sparkling 4mm Top: The faceted cubic zirconia creates a bright, noticeable focal point while remaining easy to coordinate with other jewellery.
✓ Flat Back Design: The 8mm post is finished with a smooth flat disc, creating a neat profile behind the piercing.
💎 The Detail
Simple, colourful and full of sparkle, this gemstone stud offers an easy way to introduce colour into a curated ear. Its classic round crystal works beautifully on its own or alongside decorative studs and hoops.
The stud measures 16 Gauge with an 8mm wearable post, 4mm gemstone top and externally threaded closure. The 8mm post provides slightly more room than a close-fitting 6mm option, but suitability will depend on your anatomy and piercing placement.
Made from 316L surgical steel for healed piercings. Surgical steel contains nickel, so ASTM F136 titanium may be a better choice if you have a known nickel sensitivity. Clean gently with mild soap and water, rinse thoroughly and dry with a soft cloth.
Sold individually.
WHERE CAN I WEAR THIS?
The highlighted areas below show typical compatible placements for this jewellery.
Suitable for the highlighted piercing placements shown above. Check the gauge and post length against jewellery that already fits your piercing comfortably.
Placement suitability and sizing can vary depending on your individual anatomy and piercing position.
These are the measurements for this piece of jewellery. If this product has multiple sizes, the guide will use your selected size where available. Compare with jewellery that already fits you comfortably if you're unsure.
Shipping & Delivery
We aim to dispatch orders within 24 hours, Monday–Friday. All UK delivery options are fully tracked.
Need it quickly? Express orders placed before 2pm Monday–Friday are eligible for same-day dispatch. Next Day Delivery orders must be placed before 2pm for same-day dispatch.
Cut-off times exclude weekends, UK Bank Holidays and multipack sets. Delivery estimates begin after dispatch.
Returns
Changed your mind? Unopened piercing jewellery can be returned within 90 days of purchase.
Your statutory rights are not affected.
CARE & LONGEVITY
A little thoughtful care will help your jewellery look its best for longer.
Surgical steel is durable and easy to care for. Keep your jewellery clean and dry thoroughly after exposure to water or sweat.
Surgical steel is suitable for regular wear in healed piercings. Keep the jewellery clean and check that any removable ends remain secure.
After contact with sweat, seawater or chlorinated water, rinse your jewellery with clean water and dry it thoroughly using a soft cloth.
Clean gently using warm water and a mild, fragrance-free soap. Rinse thoroughly and dry with a soft cloth before wearing or storing.
Avoid bleach, alcohol, abrasive cleaners and other harsh chemicals.
Store your jewellery somewhere clean and dry, ideally separately from other pieces to prevent scratches or tangling. The pouch provided with your order is perfect for keeping it protected.
Avoid knocking, pulling or catching crystal settings on clothing. Clean around decorative details gently and avoid soaking or using abrasive brushes.
Jewellery care is different from piercing aftercare. If your piercing is new, irritated or still healing, speak to a professional piercer before changing your jewellery.
Typical Sizes by Piercing
| Piercing | Common Gauge | Typical Post Length* |
|---|---|---|
| Lobe | 16G–20G | 6–8mm |
| Helix | 16G–18G | 6–8mm |
| Forward Helix | 16G–18G | 6mm |
| Flat | 16G–18G | 6–8mm |
| Tragus | 16G–18G | 6mm |
| Conch | 16G | 6–8mm |
| Nostril | 18G–20G | 6–8mm |
*Typical sizes are a guide for healed piercings only. Anatomy and piercing placement vary, so your ideal post length may differ. Where possible, measure jewellery that already fits comfortably or ask your piercer.
Gauge / Thickness
| Gauge | Thickness | Commonly Used For |
|---|---|---|
| 20G | 0.8mm | Fine piercing jewellery |
| 18G | 1.0mm | Nose and some ear piercings |
| 16G | 1.2mm | Common cartilage and flat back jewellery size |
| 14G | 1.6mm | Thicker piercing jewellery |
Bar Length
| Length | Fit |
|---|---|
| 4mm | Very short / close fit |
| 6mm | Close, neat fit for many healed piercings |
| 8mm | More room and a slightly looser fit |
| 10mm | Longer fit / additional room |
| 12mm+ | Extra length where required |
How is length measured?
Bar length is measured along the wearable post only, not including the decorative top or flat back.
Everyone’s anatomy is different. If possible, measure a piece of jewellery that already fits you comfortably.
“Very pretty & sparkly”
