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Loose Moissanite
  • Lab Grown Moissanite Big Size 18x8mm 5cts VVS1 Marquise Cut Loose Moissanite Stone
  • Lab Grown Moissanite Big Size 18x8mm 5cts VVS1 Marquise Cut Loose Moissanite Stone
  • Lab Grown Moissanite Big Size 18x8mm 5cts VVS1 Marquise Cut Loose Moissanite Stone
  • Lab Grown Moissanite Big Size 18x8mm 5cts VVS1 Marquise Cut Loose Moissanite Stone
  • Lab Grown Moissanite Big Size 18x8mm 5cts VVS1 Marquise Cut Loose Moissanite Stone
  • Lab Grown Moissanite Big Size 18x8mm 5cts VVS1 Marquise Cut Loose Moissanite Stone
Lab Grown Moissanite Big Size 18x8mm 5cts VVS1 Marquise Cut Loose Moissanite Stone
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Lab Grown Moissanite Big Size 18x8mm 5cts VVS1 Marquise Cut Loose Moissanite Stone

$2.40-$80.00/ Piece|1 Piece/Pieces(Min. Order)

Customization:

Size（Min.Order: 1 pieces）
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Lab Grown Moissanite Big Size 18x8mm 5cts VVS1 Marquise Cut Loose Moissanite Stone

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Jewelry Creation: Designed for crafting high-end jewelry pieces such as engagement rings, pendants, and earrings, leveraging the marquise cut’s elongated shape to enhance brilliance and visual appeal.
  • Lab-Grown Moissanite: A durable, lab-created alternative to diamonds, offering exceptional fire and luster with a VVS1 clarity grade, ensuring minimal inclusions and maximum sparkle.

Key features

  • 1. Lab-Grown Moissanite Material Technology

    • With lab-grown moissanite, you can achieve a durable and brilliant stone that rivals mined diamonds in sparkle while being more ethical and sustainable.* This eco-conscious choice offers exceptional hardness (9.25 on the Mohs scale) and fire, making it ideal for long-lasting jewelry.

  • 2. VVS1 Clarity and 5ct Size Performance

    • With VVS1 clarity and a 5ct weight, you can ensure exceptional optical purity and create bold, eye-catching jewelry that outshines lower-clarity alternatives.* The 18x8mm dimensions provide a dramatic presence, perfect for statement pieces.

  • 3. Versatile Marquise Cut Design

    • With the elongated marquise cut, you can design jewelry that enhances finger length and elegance, ideal for statement rings, pendants, or earrings. Its unique shape balances brilliance and fire, offering a striking aesthetic in any setting.

  • 4. EPR-Certified Eco-Friendly Packaging

    • With EPR-certified packaging from Germany and France, you can support environmentally responsible practices, meeting strict EU recycling standards. This ensures minimal ecological impact from production to disposal.

  • 5. Customizable Large-Scale Aesthetic Solutions

    • With its 18x8mm dimensions and marquise silhouette, you can craft jewelry that stands out in size and style compared to standard cuts.* The cut’s balance of elongation and symmetry makes it adaptable to diverse designs, from classic to avant-garde.

Product details

Lab Grown Moissanite Big Size 18x8mm 5cts VVS1 Marquise Cut Loose Moissanite Stone

The Lab Grown Moissanite Big Size 18x8mm 5cts VVS1 Marquise Cut Loose Stone combines luxury and sustainability. With its elongated marquise cut, this lab-grown moissanite delivers exceptional brilliance and fire, ideal for high-end jewelry. Certified under EPR standards in Germany and France, it ensures environmental compliance and premium quality.

Technical specifications

FeatureSpecificationBenefit
MaterialLab-Grown MoissaniteEco-friendly, conflict-free, and durable
CutMarquise CutMaximizes light reflection and elegance
Carat Weight5ctsImpressive size for statement jewelry
Dimensions18x8mmSlim profile enhances finger length
ClarityVVS1Virtually flawless appearance
CertificationsEPR_Germany_Packing, EPR_France_PackingMeets EU environmental regulations

Customization guide

Adjust dimensions (e.g., 16x7mm or 20x9mm) or clarity grades (e.g., IF or VS) to match specific jewelry designs or client preferences.

Get inspired

The marquise cut’s elongated shape creates a dramatic focal point in rings, pendants, or earrings. Pair its 5cts size with platinum settings for a timeless, luxurious look.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Brilliance85% light return+15% (98% return)+30% (100% return)*
HardnessMohs 9.25Enhanced durabilityPremium scratch-resistance
ClarityVVS1VVS1+ (fewer inclusions)IF (internally flawless)

Supplier's note

  1. Technical Breakthroughs:

    • EPR Compliance: Dual EU certifications ensure eco-friendly packaging and disposal.
    • VVS1 Clarity: Achieved through advanced growth technology, minimizing inclusions.
    • Marquise Cut Design: Optimized light performance for 20% more fire than standard cuts.

  2. Version Selection Guide:

    • Base Model: Ideal for everyday wear or mid-range jewelry lines needing durability at an accessible price.
    • Advanced Model: Perfect for luxury retailers seeking enhanced clarity and brilliance for high-end bridal collections.
    • Pro Model: Tailored for bespoke jewelry designers requiring flawless stones for statement pieces (e.g., engagement rings). With its IF clarity, it guarantees no visible inclusions even under close inspection.

*Pro Model’s 100% light return is achieved through proprietary facet polishing.

Frequently asked questions

  • Which lab grown moissanite model is best for engagement rings with a marquise cut?

  • How do I clean a 18x8mm moissanite marquise cut loose stone?

  • Moissanite vs Diamond: Which is better for a 5cts marquise engagement ring?

  • Can I customize the setting for a 18x8mm marquise cut moissanite stone?

  • Is this moissanite certified for quality and environmental standards?

  • What advantages does the 18x8mm size offer for marquise cut moissanite?

  • Why choose a marquise cut over other moissanite shapes for large stones?

  • Does the VVS1 clarity affect the marquise cut’s visual appeal?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Certification ComplianceEU market, eco-conscious buyersIndustry: Basic packagingOur Base: EPR Germany (▲)Our Advanced: EPR Germany + France (▲▲) (complies with EU waste regulations)
ClarityLuxury jewelry, high-end engagementIndustry: VS2 (0.1% inclusions)Our Base: VVS2 (0.03%)Our Advanced: VVS1 (<0.01%, GIA standard) (▲▲)
Cut PrecisionStatement jewelry, center stonesIndustry: ±1° symmetryOur Base: ±0.7° (▲)Our Advanced: ±0.5° (▲▲) (IDEAL Labs certified)
Weight/SizeBold designs, cocktail ringsIndustry: 3cts avgOur Base: 4cts (▲)Our Advanced: 5cts (▲▲) (18x8mm, ISO 11274 certified)
Brilliance/FireEvening wear, centerpiecesIndustry: 2.0 (diamond)Our Base: 2.2 (▲)Our Advanced: 2.4 (▲▲) (GIA scale)
Environmental ProductionSustainable brands, ethical buyersIndustry: Non-certifiedOur Base: Carbon-neutral (TÜV)Our Advanced: Carbon-negative (▲) (renewable energy)

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