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14K yellow gold flat back labret with 3mm blue sapphire in four-prong setting, angled product view
Prong-set gemstone flat back labrets in multiple birthstone colors on silver posts arranged on satin
Rainbow of 3mm prong-set gemstone threadless stud ends worn across multiple ear piercings on model
14K yellow gold prong-set flat back labrets in nine gemstone colors displayed on reflective surface
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
14k yellow gold oval diamond flat back labret size comparison: 18G 5mm, 18G 6mm, 16G 8mm, 14G 9.5mm
3mm blue sapphire prong-set flat back labret in 14K yellow gold showing post and flat disc backing
Diagram comparing 16G and 14G internally threaded end versus 18G threadless push-pin labret post
Four-step illustrated guide for inserting and removing a threadless push-pin flat back labret stud
3mm blue sapphire prong-set flat back labret in 14K white gold showing post and flat disc backing
3mm blue sapphire prong-set flat back labret in 14K rose gold showing post and flat disc backing
14K yellow gold flat back labret with 3mm blue sapphire in four-prong setting, angled product view
Prong-set gemstone flat back labrets in multiple birthstone colors on silver posts arranged on satin
Rainbow of 3mm prong-set gemstone threadless stud ends worn across multiple ear piercings on model
14K yellow gold prong-set flat back labrets in nine gemstone colors displayed on reflective surface
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
14k yellow gold oval diamond flat back labret size comparison: 18G 5mm, 18G 6mm, 16G 8mm, 14G 9.5mm
3mm blue sapphire prong-set flat back labret in 14K yellow gold showing post and flat disc backing
Diagram comparing 16G and 14G internally threaded end versus 18G threadless push-pin labret post
Four-step illustrated guide for inserting and removing a threadless push-pin flat back labret stud
3mm blue sapphire prong-set flat back labret in 14K white gold showing post and flat disc backing
3mm blue sapphire prong-set flat back labret in 14K rose gold showing post and flat disc backing
Home 3mm Blue Sapphire 14K Gold Prong Set Flat Back Labret

3mm Blue Sapphire 14K Gold Prong Set Flat Back Labret

$255 $498 Est. Retail Value
14K yellow gold flat back labret with 3mm blue sapphire in four-prong setting, angled product view
Prong-set gemstone flat back labrets in multiple birthstone colors on silver posts arranged on satin
Rainbow of 3mm prong-set gemstone threadless stud ends worn across multiple ear piercings on model
14K yellow gold prong-set flat back labrets in nine gemstone colors displayed on reflective surface
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
14k yellow gold oval diamond flat back labret size comparison: 18G 5mm, 18G 6mm, 16G 8mm, 14G 9.5mm
3mm blue sapphire prong-set flat back labret in 14K yellow gold showing post and flat disc backing
Diagram comparing 16G and 14G internally threaded end versus 18G threadless push-pin labret post
Four-step illustrated guide for inserting and removing a threadless push-pin flat back labret stud
3mm blue sapphire prong-set flat back labret in 14K white gold showing post and flat disc backing
3mm blue sapphire prong-set flat back labret in 14K rose gold showing post and flat disc backing
14K yellow gold flat back labret with 3mm blue sapphire in four-prong setting, angled product view
Prong-set gemstone flat back labrets in multiple birthstone colors on silver posts arranged on satin
Rainbow of 3mm prong-set gemstone threadless stud ends worn across multiple ear piercings on model
14K yellow gold prong-set flat back labrets in nine gemstone colors displayed on reflective surface
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
14k yellow gold oval diamond flat back labret size comparison: 18G 5mm, 18G 6mm, 16G 8mm, 14G 9.5mm
3mm blue sapphire prong-set flat back labret in 14K yellow gold showing post and flat disc backing
Diagram comparing 16G and 14G internally threaded end versus 18G threadless push-pin labret post
Four-step illustrated guide for inserting and removing a threadless push-pin flat back labret stud
3mm blue sapphire prong-set flat back labret in 14K white gold showing post and flat disc backing
3mm blue sapphire prong-set flat back labret in 14K rose gold showing post and flat disc backing

Gemstone Size

3mm Blue Sapphire
2mm Amethyst 3mm Blue Sapphire 3mm Blue Zircon 3mm Emerald 3mm Garnet 3mm Peridot 3mm Pink Sapphire 3mm Rhodolite Garnet 3mm Ruby
Size Chart

Sizing Piercing Jewelry

Choosing the right size ensures comfort, healthy healing, and a flawless look. Use this guide to understand gauge, length, and diameter, then confirm your fit with the conversion charts below.

What Is “Gauge”?

The gauge of your piercing is the thickness of the bar that passes through your piercing—i.e., the barbell’s thickness. Note the system is inverse: a lower number = thicker bar. For example, a 12G barbell is thicker than a 20G barbell.

Piercing Jewelry “Length”

The length of your piercing jewelry refers to the wearable span of a straight or curved barbell—the section that sits inside the piercing. It’s measured end-to-end on the bar and excludes any ends, balls, or charms.

measuring length of a flat back earring measuring length of a nose ring



measuring length of a straight barbell measuring length of curved barbell


Piercing Jewelry “Diameter”

The diameter is used for circular styles—hoops, captives, clickers, seam rings, and circular barbells. Measure from the innermost, widest point across the inside of the hoop.

measuring diameter of captive bead ring measuring diameter of circular barbell

Standard Piercing Sizes

Check the chart below for typical starting sizes. Like clothing, anatomy varies—your ideal size may differ.

💡 Tip: Measure a comfortable piece you already wear to confirm your fit.


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Made to order: Ready in 1–2 weeks

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Product Description

Description

One of the most desirable precious gemstones, the blue sapphire is also September's birthstone. The 3mm gemstone is slightly larger than our 2mm sapphire labret, making it truly pop in lip or cartilage piercings. Cut by hand, it promises the ultimate shine. Featuring handcrafted attention to detail, internal threading, and solid 14k gold, you'll be able to feel the quality of this beautiful design.

  • 3mm genuine blue sapphire
  • Nickel-free solid 14k gold
  • 18G features a Press-fit threadless post with a push-pin end.
  • 16G & 14G feature an Internally threaded post with a threaded end.
  • 3mm flat disc backing
  • Handmade in the USA
  • Available in 14 Gauge (1.6mm), 16 Gauge (1.2mm), and 18 Gauge (1mm)
  • Choose from yellow, white, and rose gold
  • Great for helix, forward helix, tragus, nose, and lip
Product Details
Materials
Shipping

Pairs Well With

FreshTrends mint green travel jewelry box, closed front view with gold FT Est. 2003 logo Close-up of travel jewelry box interior holding gold piercing studs, earrings, and CZ body jewelry
Travel Jewelry Box $17
3mm pink sapphire flat back labret in 14K yellow gold with four-prong setting, angled studio view 3mm pink sapphire flat back labret in 14K rose gold with four-prong setting and polished flat back
3mm Pink Sapphire 14K Gold Prong Set Flat Back Labret $261
Flat back earring insertion tool beside a gold CZ flat back stud, showing tool and jewelry separately Insertion tool being used in a helix piercing on a model, with gold CZ chain connector studs in lobe
Flat Back Earring Easy Insertion Tool $14
Five 14k yellow gold 5mm birthstone cartilage studs in pink, blue, clear, lavender, and green 14k rose gold 5mm genuine sapphire cartilage stud with deep blue stone, angled view
5mm Genuine Birthstone 14k Gold Cartilage Stud Earring $287
14k yellow gold pear-cut blue sapphire flat back labret stud, angled view showing prong setting and post Four-step illustrated guide to inserting and removing an 18G threadless push pin flat back piercing stud
Blue Sapphire Pear Shaped Flat Back Earring $330
14k yellow gold plain clicker ring hoop, front view with inset showing open clasp detail 14k rose gold plain clicker ring hoop, 12G front view with bold tube width and warm rosy finish
14k Gold Plain Hoop Clicker Ring $318

Jeweler-Direct Pricing

Jeweler-Direct means crafted, just for you. By skipping the middleman, we eliminate traditional retail markups — so you can enjoy luxury piercing jewelry without the inflated price.

Fresh Trends Price — $249

Est. Retail Value — $498

Fresh Trends Piercing Advisor™

Our complimentary Piercing Advisor™ service ensures your jewelry fits perfectly. After your order, a specialist reviews your selection, verifies your size, and guides you through any adjustments. For jewelry to be eligible for an adjustment, FreshTrends Piercing Advisor™ must be added to your cart at the time of original purchase.

Why It Matters:

• Anatomy varies, and size is crucial

• A specialist confirms your fit before we craft your piece

• You get a flawless, comfortable result—every time

Piercing Advisor Service

Handcrafted Just For You!

Our in-house jewelry designer and artisans create one-of-a-kind piercing jewelry from solid 14k gold and 950 platinum, always 100% nickel-free.

Each piece is made-to-order and never mass-produced, allowing for many gemstone and size options for the perfect fit. We take pride in hand-crafting fine body jewelry in the USA.

Fresh Trends Fine Jewelry

Because every piercing deserves its masterpiece.

Ready to Gift

Your jewelry arrives in our signature packaging—a keepsake box with a soft green pouch and a Wear & Care Guide. Premium pieces are showcased in an LED presentation box that elevates every gifting moment.

Fresh Trends Packaging

Fresh Trends® Lifetime Warranty

Every piece we craft is designed for lifelong wear. If your jewelry ever shows a manufacturing defect, we’ll repair or replace it—complimentary, for life.

Lifetime Confidence. Handmade Quality.

Gold earring with clear gemstones on a soft pink fabric background

Sustainable Jewelry

We use recycled metals to help reduce the carbon footprint of manufacturing and the negative impact of metal mining.

We plant one new tree per order in partnership with Ecologi to help restore nature and reduce the carbon footprint of our operations.

ecology

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