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14k yellow gold 3mm trillion-cut diamond flat back labret stud, angled view showing disc backing
14k white gold trillion-cut diamond labret end, front view showing three-prong setting and facets
14k white gold 3mm trillion diamond flat back labret stud, angled lifestyle shot on neutral surface
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
14k yellow gold trillion-cut diamond flat back labret stud, angled product view on white background
14k rose gold 3mm trillion diamond flat back labret stud, angled lifestyle shot on neutral surface
Diagram comparing threadless push-pin vs threaded flat back labret styles in 14k yellow gold
14k yellow gold trillion diamond threadless flat back labret with push-pin end separated, showing pin
Four-step how-to guide for bending and inserting a threadless push-pin end into a cartilage piercing
14k white gold trillion diamond threadless flat back labret with push-pin end detached, full stud view
14k rose gold trillion diamond threadless flat back labret with push-pin end detached, full stud view
14k white gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
14k yellow gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
14k rose gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
14k yellow gold 3mm trillion-cut diamond flat back labret stud, angled view showing disc backing
14k white gold trillion-cut diamond labret end, front view showing three-prong setting and facets
14k white gold 3mm trillion diamond flat back labret stud, angled lifestyle shot on neutral surface
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
14k yellow gold trillion-cut diamond flat back labret stud, angled product view on white background
14k rose gold 3mm trillion diamond flat back labret stud, angled lifestyle shot on neutral surface
Diagram comparing threadless push-pin vs threaded flat back labret styles in 14k yellow gold
14k yellow gold trillion diamond threadless flat back labret with push-pin end separated, showing pin
Four-step how-to guide for bending and inserting a threadless push-pin end into a cartilage piercing
14k white gold trillion diamond threadless flat back labret with push-pin end detached, full stud view
14k rose gold trillion diamond threadless flat back labret with push-pin end detached, full stud view
14k white gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
14k yellow gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
14k rose gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
Home 3mm Trillion-Cut Diamond Flat Back Stud

3mm Trillion-Cut Diamond Flat Back Stud

$680 $1,268 Est. Retail Value
14k yellow gold 3mm trillion-cut diamond flat back labret stud, angled view showing disc backing
14k white gold trillion-cut diamond labret end, front view showing three-prong setting and facets
14k white gold 3mm trillion diamond flat back labret stud, angled lifestyle shot on neutral surface
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
14k yellow gold trillion-cut diamond flat back labret stud, angled product view on white background
14k rose gold 3mm trillion diamond flat back labret stud, angled lifestyle shot on neutral surface
Diagram comparing threadless push-pin vs threaded flat back labret styles in 14k yellow gold
14k yellow gold trillion diamond threadless flat back labret with push-pin end separated, showing pin
Four-step how-to guide for bending and inserting a threadless push-pin end into a cartilage piercing
14k white gold trillion diamond threadless flat back labret with push-pin end detached, full stud view
14k rose gold trillion diamond threadless flat back labret with push-pin end detached, full stud view
14k white gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
14k yellow gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
14k rose gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
14k yellow gold 3mm trillion-cut diamond flat back labret stud, angled view showing disc backing
14k white gold trillion-cut diamond labret end, front view showing three-prong setting and facets
14k white gold 3mm trillion diamond flat back labret stud, angled lifestyle shot on neutral surface
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
14k yellow gold trillion-cut diamond flat back labret stud, angled product view on white background
14k rose gold 3mm trillion diamond flat back labret stud, angled lifestyle shot on neutral surface
Diagram comparing threadless push-pin vs threaded flat back labret styles in 14k yellow gold
14k yellow gold trillion diamond threadless flat back labret with push-pin end separated, showing pin
Four-step how-to guide for bending and inserting a threadless push-pin end into a cartilage piercing
14k white gold trillion diamond threadless flat back labret with push-pin end detached, full stud view
14k rose gold trillion diamond threadless flat back labret with push-pin end detached, full stud view
14k white gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
14k yellow gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
14k rose gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment

Diamond Size

3mm
2.5mm 3mm
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

Solid 14k Gold

Jeweler Direct

Handmade

Piercing Advisor

Ethical Luxury

Lifetime Warranty

Looking for something different? Request a custom design →

Product Description

Description

The 3mm Trillion-Cut Diamond Flat Back Stud features a bold triangular silhouette with smooth edges and high dispersion. Its shape creates intense sparkle with a modern feel. Expertly crafted in solid 14k gold for a sleek, comfortable fit.

Details

  • 3mm size (0.12 ct) | Conflict-free

  • VS Diamond Clarity | G–H Color

  • Solid 14k gold, nickel-free & hypoallergenic

  • Comfortable 3mm disc backing

  • Threadless end-only option includes a free 16g 6mm titanium backing

  • Ideal for lip, labret, tragus, helix, conch, cartilage, and nose piercings

  • Ethically handmade in California

Product Details
Materials
Shipping

Pairs Well With

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
14k white gold trillion-cut diamond labret end, front view showing three-prong setting and facets 14k rose gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
3mm Trillion-Cut Diamond Nose Ring $540
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
14k yellow gold nipple barbell with dual trillion-cut diamonds in prong settings, front view 14k rose gold nipple barbell featuring dual trillion-cut diamond ends in prong settings, front view
.204 CTW Trillion Diamond Nipple Barbell $1,324.76
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
14k yellow gold trinity diamond flat back labret stud, angled view showing three-stone cluster and disc backing Trinity diamond flat back stud worn in second lobe piercing, shown in curated gold ear stack styling
Teeny Trinity Diamond Flat Back Stud $191.56

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 — $634

Est. Retail Value — $1,268

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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