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14k yellow gold marquise diamond flat back labret stud with 4-prong setting, angled lifestyle shot
4mm marquise diamond flat back stud worn in a tragus piercing on a model's ear
14k yellow gold 4mm marquise diamond flat back labret stud, angled view on white background
Side-by-side comparison of marquise diamond flat back stud in 14k yellow, rose, and white gold
4mm marquise diamond labret stud end held between fingers to show actual size and scale
14k rose gold 4mm marquise diamond flat back labret stud, angled view on white background
Diagram showing marquise diamond flat back studs placed in helix and conch piercing positions
Side-by-side comparison of threadless push-pin and threaded end styles for 14k gold flat back labret studs
14k white gold 4mm marquise diamond flat back labret stud, angled view on white background
True side profile of 14k yellow gold marquise diamond flat back stud showing post and disc backing
14k rose gold marquise diamond threadless push-pin end only, showing pin and prong setting detail
14k yellow gold marquise diamond threadless push-pin end only, angled view showing setting detail
14k white gold marquise diamond threadless push-pin end only, angled view showing prong setting
14k yellow gold marquise diamond flat back labret shown disassembled with threadless push-pin end
14k yellow gold marquise diamond flat back labret stud with 4-prong setting, angled lifestyle shot
4mm marquise diamond flat back stud worn in a tragus piercing on a model's ear
Video thumbnail
14k yellow gold 4mm marquise diamond flat back labret stud, angled view on white background
Side-by-side comparison of marquise diamond flat back stud in 14k yellow, rose, and white gold
4mm marquise diamond labret stud end held between fingers to show actual size and scale
14k rose gold 4mm marquise diamond flat back labret stud, angled view on white background
Diagram showing marquise diamond flat back studs placed in helix and conch piercing positions
Side-by-side comparison of threadless push-pin and threaded end styles for 14k gold flat back labret studs
14k white gold 4mm marquise diamond flat back labret stud, angled view on white background
True side profile of 14k yellow gold marquise diamond flat back stud showing post and disc backing
14k rose gold marquise diamond threadless push-pin end only, showing pin and prong setting detail
14k yellow gold marquise diamond threadless push-pin end only, angled view showing setting detail
14k white gold marquise diamond threadless push-pin end only, angled view showing prong setting
14k yellow gold marquise diamond flat back labret shown disassembled with threadless push-pin end
Home 4mm Marquise Diamond Flat Back Stud

4mm Marquise Diamond Flat Back Stud

$456 $387.60 15% OFF $778 Est. Retail Value
14k yellow gold marquise diamond flat back labret stud with 4-prong setting, angled lifestyle shot
4mm marquise diamond flat back stud worn in a tragus piercing on a model's ear
14k yellow gold 4mm marquise diamond flat back labret stud, angled view on white background
Side-by-side comparison of marquise diamond flat back stud in 14k yellow, rose, and white gold
4mm marquise diamond labret stud end held between fingers to show actual size and scale
14k rose gold 4mm marquise diamond flat back labret stud, angled view on white background
Diagram showing marquise diamond flat back studs placed in helix and conch piercing positions
Side-by-side comparison of threadless push-pin and threaded end styles for 14k gold flat back labret studs
14k white gold 4mm marquise diamond flat back labret stud, angled view on white background
True side profile of 14k yellow gold marquise diamond flat back stud showing post and disc backing
14k rose gold marquise diamond threadless push-pin end only, showing pin and prong setting detail
14k yellow gold marquise diamond threadless push-pin end only, angled view showing setting detail
14k white gold marquise diamond threadless push-pin end only, angled view showing prong setting
14k yellow gold marquise diamond flat back labret shown disassembled with threadless push-pin end
14k yellow gold marquise diamond flat back labret stud with 4-prong setting, angled lifestyle shot
4mm marquise diamond flat back stud worn in a tragus piercing on a model's ear
Video thumbnail
14k yellow gold 4mm marquise diamond flat back labret stud, angled view on white background
Side-by-side comparison of marquise diamond flat back stud in 14k yellow, rose, and white gold
4mm marquise diamond labret stud end held between fingers to show actual size and scale
14k rose gold 4mm marquise diamond flat back labret stud, angled view on white background
Diagram showing marquise diamond flat back studs placed in helix and conch piercing positions
Side-by-side comparison of threadless push-pin and threaded end styles for 14k gold flat back labret studs
14k white gold 4mm marquise diamond flat back labret stud, angled view on white background
True side profile of 14k yellow gold marquise diamond flat back stud showing post and disc backing
14k rose gold marquise diamond threadless push-pin end only, showing pin and prong setting detail
14k yellow gold marquise diamond threadless push-pin end only, angled view showing setting detail
14k white gold marquise diamond threadless push-pin end only, angled view showing prong setting
14k yellow gold marquise diamond flat back labret shown disassembled with threadless push-pin end

Diamond Size

4mm
2.5mm 3mm 4mm
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
Introducing our 4mm Marquise Diamond Flat Back Stud a captivating jewelry piece that beautifully balances elegance and subtlety. This stud features a single, carefully cut 4mm marquise-shaped diamond, chosen for its exquisite brilliance and enchanting shape.
  • Diamond Carat: 0.068ct | Conflict-free genuine diamond
  • VS1 Diamond Clarity (ideal)
  • Solid 14k gold | Nickel-free | Hypoallergenic
  • Comfortable 3mm disc backing
  • 18G features a Threadless Push-pin
  • Choose Threaded or Threadless Push-pin for 16G
  • Commonly worn as a cartilage earring: helix, conch, tragus, earlobes; lip ring: labret, medusa; as well as a nose ring.
  • Ethically handmade in the USA

    Useful Tips:
  • How Threadless Push Pin Piercing Jewelry Works 
  • Body Piercing Jewelry Size Guide
Product Details
Materials
Shipping

Pairs Well With

14k yellow gold amethyst heart flat back stud with bezel setting and disc backing, angled view Close-up front view of 14k white gold amethyst heart labret end with polished bezel setting
Amethyst Heart Flat Back Stud Earring $245
14k yellow gold Asscher-cut diamond flat back labret stud, angled studio shot showing post and disc 14k rose gold 2.6mm Asscher-cut diamond pushpin end only, angled view showing four-prong setting
2.6mm Asscher-Cut Diamond Flat Back Stud $567
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
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
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 2mm pink diamond flatback labret with perlage milgrain bezel, angled side view Close-up front view of 2mm pink diamond end in 14k yellow gold perlage bezel, threadless push-pin
2mm Pink Diamond Perlage Flat Back Stud $370

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 — $389

Est. Retail Value — $778

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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