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14k rose gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle
14k yellow gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
Size comparison of 1.7mm to 3.0mm diamond flat back studs worn in four ear piercings on model
Four 14k yellow gold diamond flat back labret studs in graduated sizes displayed on warm stone surface
2.5mm diamond flat back stud worn in nostril piercing, side profile showing dainty flush fit on model
Gold diamond flat back stud styled in helix piercing among layered gold ear jewelry on model
14k white gold 3-prong VS1 diamond labret end held between two fingers for size reference
Extreme close-up of 3-prong VS1 diamond setting resting on fingertip, showing facets and prong detail
14k yellow gold, rose gold, and white gold 3-prong diamond flat back studs side by side, all three metal colors
Side profile of 14k yellow gold 2.5mm diamond flat back labret showing full post length and flat disc back
Close-up of 3mm VS1 diamond in 3-prong white gold setting resting on fingertip, showing tiny scale
Labeled ear comparison of duo, Lumina, illusion, and bezel diamond flat back studs worn in cartilage piercings
Lumina diamond flat back stud worn in lobe piercing as part of a layered gold ear stack with multiple styles
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
Diagram comparing threadless push-pin end and threaded end styles for 14k gold diamond flat back labret
14k rose gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
14k white gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
14k yellow gold threadless flat back labret shown with push-pin end detached, displaying assembly detail
14k white gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle
14k yellow gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle
14k rose gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle
14k yellow gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
Size comparison of 1.7mm to 3.0mm diamond flat back studs worn in four ear piercings on model
Four 14k yellow gold diamond flat back labret studs in graduated sizes displayed on warm stone surface
2.5mm diamond flat back stud worn in nostril piercing, side profile showing dainty flush fit on model
Gold diamond flat back stud styled in helix piercing among layered gold ear jewelry on model
14k white gold 3-prong VS1 diamond labret end held between two fingers for size reference
Extreme close-up of 3-prong VS1 diamond setting resting on fingertip, showing facets and prong detail
14k yellow gold, rose gold, and white gold 3-prong diamond flat back studs side by side, all three metal colors
Side profile of 14k yellow gold 2.5mm diamond flat back labret showing full post length and flat disc back
Close-up of 3mm VS1 diamond in 3-prong white gold setting resting on fingertip, showing tiny scale
Labeled ear comparison of duo, Lumina, illusion, and bezel diamond flat back studs worn in cartilage piercings
Lumina diamond flat back stud worn in lobe piercing as part of a layered gold ear stack with multiple styles
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
Diagram comparing threadless push-pin end and threaded end styles for 14k gold diamond flat back labret
14k rose gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
14k white gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
14k yellow gold threadless flat back labret shown with push-pin end detached, displaying assembly detail
14k white gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle
14k yellow gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle
Home 2.5mm Lumina 3-Prong VS1 Diamond Flat Back Stud

2.5mm Lumina 3-Prong VS1 Diamond Flat Back Stud

$268 $536 Est. Retail Value
14k rose gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle
14k yellow gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
Size comparison of 1.7mm to 3.0mm diamond flat back studs worn in four ear piercings on model
Four 14k yellow gold diamond flat back labret studs in graduated sizes displayed on warm stone surface
2.5mm diamond flat back stud worn in nostril piercing, side profile showing dainty flush fit on model
Gold diamond flat back stud styled in helix piercing among layered gold ear jewelry on model
14k white gold 3-prong VS1 diamond labret end held between two fingers for size reference
Extreme close-up of 3-prong VS1 diamond setting resting on fingertip, showing facets and prong detail
14k yellow gold, rose gold, and white gold 3-prong diamond flat back studs side by side, all three metal colors
Side profile of 14k yellow gold 2.5mm diamond flat back labret showing full post length and flat disc back
Close-up of 3mm VS1 diamond in 3-prong white gold setting resting on fingertip, showing tiny scale
Labeled ear comparison of duo, Lumina, illusion, and bezel diamond flat back studs worn in cartilage piercings
Lumina diamond flat back stud worn in lobe piercing as part of a layered gold ear stack with multiple styles
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
Diagram comparing threadless push-pin end and threaded end styles for 14k gold diamond flat back labret
14k rose gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
14k white gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
14k yellow gold threadless flat back labret shown with push-pin end detached, displaying assembly detail
14k white gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle
14k yellow gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle
14k rose gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle
14k yellow gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
Size comparison of 1.7mm to 3.0mm diamond flat back studs worn in four ear piercings on model
Four 14k yellow gold diamond flat back labret studs in graduated sizes displayed on warm stone surface
2.5mm diamond flat back stud worn in nostril piercing, side profile showing dainty flush fit on model
Gold diamond flat back stud styled in helix piercing among layered gold ear jewelry on model
14k white gold 3-prong VS1 diamond labret end held between two fingers for size reference
Extreme close-up of 3-prong VS1 diamond setting resting on fingertip, showing facets and prong detail
14k yellow gold, rose gold, and white gold 3-prong diamond flat back studs side by side, all three metal colors
Side profile of 14k yellow gold 2.5mm diamond flat back labret showing full post length and flat disc back
Close-up of 3mm VS1 diamond in 3-prong white gold setting resting on fingertip, showing tiny scale
Labeled ear comparison of duo, Lumina, illusion, and bezel diamond flat back studs worn in cartilage piercings
Lumina diamond flat back stud worn in lobe piercing as part of a layered gold ear stack with multiple styles
Flat back labret sizing guide showing 18G and 16G gauges from 5mm to 9.5mm with ear piercing map
Diagram comparing threadless push-pin end and threaded end styles for 14k gold diamond flat back labret
14k rose gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
14k white gold 2.5mm VS1 diamond flat back labret stud, angled view showing 3-prong setting and disc back
14k yellow gold threadless flat back labret shown with push-pin end detached, displaying assembly detail
14k white gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle
14k yellow gold 3-prong diamond threadless push-pin end only, front-angled view highlighting VS1 diamond sparkle

Diamond Size

2.5mm
1.7mm 2mm 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

Our Lumina 3-Prong setting is designed to enhance the diamond's radiant facets and sit flush on your piercing, maximizing the sparkle of your premium VS1 diamond while minimizing visible metal when worn. The flat-back design make it a suitable choice for lip and cartilage piercings, such as the tragus and helix. Its dainty size and impressive sparkle make it a must-have for any piercing lover.

  • 2.5mm (.06ct.) conflict-free genuine diamond
  • Diamond Clarity: VS1 (ideal)
  • 3-Prongs minimizes visible metal
  • Solid 14k gold | Nickel-free | Hypoallergenic
  • Comfortable 3mm disc backing
  • 18G features a Threadless Push-pin
  • Choose Threaded or Threadless Push-pin for 16G
  • End Only option does not include a backing. Backing sold separately here.
  • Commonly worn as a cartilage earring: helix, conch, tragus, earlobes; lip ring: labret, Monroe, medusa, snake bites; as well as a nose ring.
  • Ethically handmade in the USA
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
14k yellow gold 2.5mm princess-cut diamond flat back labret stud, angled studio shot on neutral background 14k rose gold 2.5mm princess-cut diamond push-pin end only, angled view showing warm gold prong setting
2.5mm Princess-Cut Diamond Flat Back Stud $451
14k yellow gold pink diamond perlage flat back labret stud, angled view showing beaded setting and disc back 14k yellow gold 2.5mm pink diamond perlage threadless end only, front view of beaded milgrain halo setting
2.5mm Pink Diamond Perlage Flat Back Stud $592
14k yellow gold 3mm trillion-cut diamond flat back labret stud, angled view showing disc backing 14k rose gold 3mm trillion-cut diamond threadless end only, angled view showing push-pin attachment
3mm Trillion-Cut Diamond Flat Back Stud $634
14k yellow gold 3mm heart-cut diamond flat back labret stud, angled view showing disc backing 14k white gold 3mm heart-cut diamond threadless push-pin end only, angled view showing setting detail
3mm Diamond Heart Flat Back Stud $437
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

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 — $268

Est. Retail Value — $536

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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