Hypoallergenic Internally Threaded Crystal Labret Stud
✓ Waterproof ✓ Hypoallergenic ✓ Tarnish Free
Available in a wide range of crystal colours and metal finishes, this Internally Threaded Crystal Flat Back Labret Stud is crafted from durable 316L surgical steel and available in 16 Gauge or 18 Gauge with a choice of 6mm or 8mm post lengths. A brilliant 3mm round cubic zirconia creates a clean, classic focal point with bright, light-catching sparkle.
✨ Why You'll Love It
✔ Classic 3mm Crystal Design: A brilliant round cubic zirconia creates a timeless solitaire look with plenty of sparkle while remaining compact and easy to style.
✔ Versatile Size Options: Choose between 16G or 18G thicknesses and 6mm or 8mm post lengths, giving you greater flexibility when selecting jewellery for compatible piercings.
✔ Internally Threaded Flat Back: The threading sits inside the post for a smooth exterior, while the flat-back design creates a clean, streamlined finish when worn.
💎 The Detail
Simple, sparkling and exceptionally versatile, this Crystal Flat Back Stud is an easy addition to almost any jewellery collection. The compact 3mm crystal keeps the design understated enough for everyday styling while still providing a bright focal point that works beautifully alongside hoops, decorative studs and other crystal jewellery.
Available in a wide range of colours and finishes, with 16G or 18G thicknesses and a choice of 6mm or 8mm internally threaded posts. It can be worn in compatible helix, flat, forward helix, tragus, conch, lobe and labret-style piercings where the selected dimensions suit your individual anatomy and placement.
Make changing your jewellery easier
Stainless steel piercing forceps help grip jewellery securely when opening hoops or unscrewing tight posts or ball ends.
These are the measurements for this exact piece of jewellery. Compare them 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.
Materials used in this piece
Base metal: 316L SURGICAL STEEL
Good to know: This piece contains 316L Surgical Steel, a strong and durable choice for jewellery worn in healed piercings.
Choosing the right metal can make a big difference to the comfort, care and longevity of your piercing jewellery. Here's how our three main jewellery metals compare.
TITANIUM — BEST FOR SENSITIVE SKIN
Skin sensitivity: Excellent choice for sensitive skin
Best for: Fresh* or healed piercings
Everyday wear: Excellent
Care: Low maintenance
Titanium is lightweight, durable and highly resistant to corrosion. It's our recommended choice if you have sensitive skin or are concerned about nickel sensitivity.
316L SURGICAL STEEL — DURABLE EVERYDAY CHOICE • USED IN THIS PIECE
Skin sensitivity: Suitable for many people
Best for: Healed piercings
Everyday wear: Very good
Care: Easy care
316L Surgical Steel is strong, durable and resistant to everyday wear, making it a popular choice for body jewellery. Surgical steel contains nickel, so if you have a known nickel sensitivity or particularly sensitive skin, we recommend choosing titanium instead.
BRASS — STATEMENT JEWELLERY
Skin sensitivity: Not recommended for sensitive skin
Best for: Fully healed piercings
Everyday wear: Occasional wear
Care: Keep dry
Brass allows us to create more detailed and decorative jewellery designs, but it requires more care than titanium or surgical steel. Jewellery containing brass should only be worn in fully healed piercings. Keep it dry and remove before showering, swimming, exercising or sleeping.
A note about fresh piercings
The metal is only one part of choosing jewellery for a fresh piercing. The jewellery's gauge, length, design, threading and surface finish also need to be appropriate for your piercing and anatomy.
If your piercing is still healing, we recommend checking with a professional piercer before changing your jewellery.
Mixed-material jewellery
If a piece contains more than one metal, always follow the care and wear guidance for the most sensitive material. For example, jewellery with a 316L Surgical Steel bar and a brass charm should be treated as brass jewellery and kept dry.
✨ Jewellery Care
Keep your jewellery looking its best with a little regular care.
316L Surgical Steel & Titanium
Jewellery marked as waterproof can be worn around water during normal everyday use. After exposure to swimming pools, seawater, cosmetics or sweat, rinse with clean water and dry thoroughly with a soft cloth.
Brass & Plated Jewellery
To help preserve the finish, keep brass and plated decorative pieces away from water, perfume, lotions and other chemicals. Remove before showering, swimming or exercising where possible.
Cleaning Your Jewellery
Gently clean with warm water and a mild, fragrance-free soap, then rinse and dry thoroughly. Avoid abrasive cleaners, alcohol, bleach and harsh chemicals, which may damage polished, plated or crystal finishes.
Storage
Store jewellery somewhere clean and dry, ideally separately from other pieces to help prevent scratches and tangling. The zip lock pouch provided with your order is perfect for this!
💡 Tip: Always check the material information shown on the product page, as care requirements can vary depending on the metal, plating and decorative components used.
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.

























































