A 3 carat emerald-cut blue moissanite displayed face-up on deep blue velvet. The stone shows clean step facets, a centered table, and balanced symmetry. Color appears cool blue with high clarity and controlled dispersion. The rectangular emerald cut emphasizes depth, geometry, and mirror-like light return, suitable for precision jewelry settings or custom design work.

Emerald Cut Blue Moissanite: 3 ct Lab Grown Faceted Stone

$399.00
$399.00
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A 3 carat emerald-cut blue moissanite displayed face-up on deep blue velvet. The stone shows clean step facets, a centered table, and balanced symmetry. Color appears cool blue with high clarity and controlled dispersion. The rectangular emerald cut emphasizes depth, geometry, and mirror-like light return, suitable for precision jewelry settings or custom design work.
  • A 3 carat emerald-cut blue moissanite displayed face-up on deep blue velvet. The stone shows clean step facets, a centered table, and balanced symmetry. Color appears cool blue with high clarity and controlled dispersion. The rectangular emerald cut emphasizes depth, geometry, and mirror-like light return, suitable for precision jewelry settings or custom design work.
  • An emerald-cut blue moissanite centered among small round brilliant stones on dark velvet. The comparison highlights the emerald cut’s broad flashes and linear facet pattern versus round cuts. The moissanite’s size and proportions emphasize presence and clean geometry, offering a modern alternative to traditional diamond layouts for custom jewelry design.
  • Side-angle view of a lab-grown blue moissanite showing pavilion depth and step-cut structure. Facet junctions appear crisp, with even spacing and consistent polish. The emerald cut reveals controlled light behavior through long reflective planes rather than sparkle scatter, ideal for designers prioritizing clarity and architectural form.
  • Profile view of a 9×7 mm emerald-cut blue moissanite resting on a light surface. The image shows crown height, pavilion angle, and girdle thickness, useful for setting planning. The lab-grown stone displays high transparency and precise cutting, supporting CAD-based jewelry workflows or custom bench settings.
  • A 3 carat emerald-cut blue moissanite resting on a fingertip to show real-world scale. The rectangular proportions and step facets emphasize a calm, deliberate brilliance. This image helps visualize size, orientation, and wearability for rings or pendants while maintaining focus on cut precision rather than sparkle exaggeration.
  • Emerald-cut blue moissanite shown set in a silver pendant with a clean, minimal bail. The step-cut facets align with the vertical orientation of the setting, demonstrating how the stone translates into finished jewelry. Image represents a design example only, highlighting customization potential rather than a finished product.
  • A blue emerald-cut moissanite mounted in a simple ring setting on blue velvet. The clean prongs frame the stone without obscuring the step facets. This image illustrates how the cut performs in a ring format, showing balanced proportions, centered table, and controlled light return. Setting shown for visualization only.
  • Emerald-cut blue moissanite displayed in a geometric bezel-style pendant. The clean metal lines echo the stone’s rectangular form, emphasizing symmetry and precision. This image demonstrates compatibility with modern, architectural jewelry designs and reinforces the stone’s suitability for intentional, custom fabrication.
  • A 3 carat emerald-cut blue moissanite displayed face-up on deep blue velvet. The stone shows clean step facets, a centered table, and balanced symmetry. Color appears cool blue with high clarity and controlled dispersion. The rectangular emerald cut emphasizes depth, geometry, and mirror-like light return, suitable for precision jewelry settings or custom design work.
  • An emerald-cut blue moissanite centered among small round brilliant stones on dark velvet. The comparison highlights the emerald cut’s broad flashes and linear facet pattern versus round cuts. The moissanite’s size and proportions emphasize presence and clean geometry, offering a modern alternative to traditional diamond layouts for custom jewelry design.
  • Side-angle view of a lab-grown blue moissanite showing pavilion depth and step-cut structure. Facet junctions appear crisp, with even spacing and consistent polish. The emerald cut reveals controlled light behavior through long reflective planes rather than sparkle scatter, ideal for designers prioritizing clarity and architectural form.
  • Profile view of a 9×7 mm emerald-cut blue moissanite resting on a light surface. The image shows crown height, pavilion angle, and girdle thickness, useful for setting planning. The lab-grown stone displays high transparency and precise cutting, supporting CAD-based jewelry workflows or custom bench settings.
  • A 3 carat emerald-cut blue moissanite resting on a fingertip to show real-world scale. The rectangular proportions and step facets emphasize a calm, deliberate brilliance. This image helps visualize size, orientation, and wearability for rings or pendants while maintaining focus on cut precision rather than sparkle exaggeration.
  • Emerald-cut blue moissanite shown set in a silver pendant with a clean, minimal bail. The step-cut facets align with the vertical orientation of the setting, demonstrating how the stone translates into finished jewelry. Image represents a design example only, highlighting customization potential rather than a finished product.
  • A blue emerald-cut moissanite mounted in a simple ring setting on blue velvet. The clean prongs frame the stone without obscuring the step facets. This image illustrates how the cut performs in a ring format, showing balanced proportions, centered table, and controlled light return. Setting shown for visualization only.
  • Emerald-cut blue moissanite displayed in a geometric bezel-style pendant. The clean metal lines echo the stone’s rectangular form, emphasizing symmetry and precision. This image demonstrates compatibility with modern, architectural jewelry designs and reinforces the stone’s suitability for intentional, custom fabrication.
Emerald Cut Blue Moissanite: 3 ct Lab Grown Faceted Stone

Emerald Cut Blue Moissanite: 3 ct Lab Grown Faceted Stone

$399.00
$399.00
Shipping calculated at checkout.

In stock: 1-3 business days

Moissanite has become a standard material in modern lapidary and optical studies due to its hardness, refractive index, and consistency.

This gemstone is cut in an emerald cut, a step-cut geometry that emphasizes symmetry, polish, and proportional accuracy. Unlike brilliant cuts, emerald cuts do not obscure errors. Long parallel facets make alignment, table centering, and pavilion depth immediately visible, which is why this cut is commonly used to assess cutting quality and material clarity.

The blue coloration is inherent to the lab-grown material and presents as a cool, even tone under neutral lighting. Dispersion is present but restrained by the step-cut structure, allowing the stone’s geometry and internal consistency to remain the focus rather than exaggerated sparkle.

This stone is suitable as a loose material for the bench or as a controlled starting point for a commissioned piece.

Stone Specifications
Material: Lab-grown moissanite
Color: Blue
Cut: Emerald cut (step cut)
Weight: 3.0 carats

Dimensions: 9 × 7 × 5 mm
Ships from the Pacific Northwest, USA.

Every order supports Aetherium Innovations and our mission to develop tools and technologies that lower the barriers in the skilled art trades.

Bench-tested

Modular by design

Direct builder support

Pacific Northwest built

Build & Support

Aetherium products are developed around real workshop and field workflows. If you need dimensions, compatibility guidance, replacement components, or help adapting this product to your setup, contact the workshop before ordering.
Shipping & Returns

The production estimate shown near the purchase button is the current working lead time for this item. Shipping is calculated at checkout.

If an order arrives damaged, does not match what you received approval for, or you need to request a return, contact us with the order number and photos when applicable. We will review the situation directly and help determine the right next step.

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Why Aetherium

Built like someone has to use it.

We design around real workflows, direct feedback, and the belief that a good tool should expand what its owner can do.

Bench-testedDeveloped around real workshop problems, not trend forecasts.
Small-batchProduced deliberately with clear lead times and direct accountability.
AdaptableModular, repair-minded systems designed to evolve with the work.
Direct supportCompatibility question? You can talk to the person who built it.
Unsure whether this fits your setup?Send the workshop a photo or a short description before you order.
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