Alexandrite 6ct | Asscher Square Cut | 10x10mm

Alexandrite: Square Asscher Cut - 6 ct, 10x10mm Lab Stone for fine jewellery

$399.00
$399.00
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Alexandrite 6ct | Asscher Square Cut | 10x10mm
  • Alexandrite 6ct | Asscher Square Cut | 10x10mm
  • 6 ct Asscher cut alexandrite sapphire held between fingers for scale, lab-grown color-change sapphire showing violet body color with teal flashes, sharp step-cut facets, large statement gemstone suitable for custom ring or pendant design.
  • Asscher cut alexandrite sapphire viewed from side profile, 10x10mm square gemstone with tall crown and deep pavilion, precise step facets emphasizing clarity and symmetry, lab-grown sapphire material designed for fine jewelry settings.
  • Loose alexandrite sapphire gemstone, 6 carat Asscher cut, resting on black fabric, showing saturated purple tone with cool blue-green undertones, clean facet junctions, architectural step-cut geometry favored in Art Deco jewelry designs.
  • Alexandrite sapphire shown set in silver pendant for design inspiration, 6 ct Asscher cut stone with visible color shift from violet to teal, demonstrating scale and presence for custom jewelry commissions, stone sold separately.
  • Close-up of Asscher cut alexandrite sapphire pavilion, showing concentric step facets, high polish, and optical depth, lab-grown sapphire gemstone engineered for symmetry, durability, and controlled light performance.
  • Alexandrite sapphire gemstone, 6 carat Asscher cut, 10x10mm square step-cut stone shown on cream jewelry cushion, displaying purple to teal color shift under neutral light, crisp concentric step facets, high symmetry, loose gemstone intended for custom jewelry or collector setting.
  • Alexandrite 6ct | Asscher Square Cut | 10x10mm
  • 6 ct Asscher cut alexandrite sapphire held between fingers for scale, lab-grown color-change sapphire showing violet body color with teal flashes, sharp step-cut facets, large statement gemstone suitable for custom ring or pendant design.
  • Asscher cut alexandrite sapphire viewed from side profile, 10x10mm square gemstone with tall crown and deep pavilion, precise step facets emphasizing clarity and symmetry, lab-grown sapphire material designed for fine jewelry settings.
  • Loose alexandrite sapphire gemstone, 6 carat Asscher cut, resting on black fabric, showing saturated purple tone with cool blue-green undertones, clean facet junctions, architectural step-cut geometry favored in Art Deco jewelry designs.
  • Alexandrite sapphire shown set in silver pendant for design inspiration, 6 ct Asscher cut stone with visible color shift from violet to teal, demonstrating scale and presence for custom jewelry commissions, stone sold separately.
  • Close-up of Asscher cut alexandrite sapphire pavilion, showing concentric step facets, high polish, and optical depth, lab-grown sapphire gemstone engineered for symmetry, durability, and controlled light performance.
  • Alexandrite sapphire gemstone, 6 carat Asscher cut, 10x10mm square step-cut stone shown on cream jewelry cushion, displaying purple to teal color shift under neutral light, crisp concentric step facets, high symmetry, loose gemstone intended for custom jewelry or collector setting.
Alexandrite: Square Asscher Cut - 6 ct, 10x10mm Lab Stone for fine jewellery

Alexandrite: Square Asscher Cut - 6 ct, 10x10mm Lab Stone for fine jewellery

$399.00
$399.00
Shipping calculated at checkout.

In stock: 1-3 business days

This is a 6-carat alexandrite-style sapphire, precision cut in a classic Asscher geometry. The Asscher cut is a step-cut design that prioritizes symmetry, depth, and internal structure over raw sparkle. Large open facets and a broad table make cutting quality and material clarity immediately visible, which is why this cut is traditionally reserved for high-confidence stones.

The sapphire-based material shows off the classic alexandrite effect, a teal-to-violet color shift that responds cleanly to lighting changes. Cooler light favors blue-green tones, while warmer light reveals saturated violet and purple. The step-cut Asscher geometry keeps the effect structured and intentional rather than chaotic.

This listing is for the loose gemstone shown. If you are planning a custom piece and want to select the stone before design work begins, this stone is also available as the starting point for a commissioned ring or pendant.

Stone Details
• Material: Lab-grown sapphire (alexandrite-style color shift)
• Cut: Asscher cut (step cut)
• Weight: 6.0 carats
• Dimensions: 10 × 10 mm
• Condition: Loose, unset stone

For the modern jeweler.
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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