• Face-up BLS113 lab-grown alexandrite in tweezers, showing its Dutch Marquise Hexagon outline and greenish blue color.
  • Video of BLS113 lab-grown alexandrite showing its facets and shifting reflections as the viewing angle changes.
  • Pavilion and back view of BLS113 lab-grown alexandrite in tweezers, showing the elongated hexagonal outline.
  • Side profile of BLS113 lab-grown alexandrite in tweezers, showing its crown, girdle and pavilion depth.
  • BLS113 color-change lab-grown alexandrite on a fingertip for an approximate sense of its 10 x 5 mm face-up size.
  • Alternate fingertip view of BLS113 showing its elongated geometric outline and mixed blue-green and reddish reflections.
  • Face-up BLS113 lab-grown alexandrite on a white background, showing the Dutch Marquise Hexagon facet pattern.
  • Angled view of BLS113 lab-grown alexandrite on white, showing greenish blue color and red-purple reflections.
  • Alternate angled view of BLS113 lab-grown alexandrite, showing its geometric outline and color-changing reflections.
  • Representative GFCO Gem Lab report for BLS113. The supplied lab-grown alexandrite includes its own report.
  • Brahma Diam card explaining the controlled Czochralski pulling method used to grow lab-grown gemstone material.
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10x5mm Color-Change Lab-Grown Alexandrite, BLS113 Dutch Marquise Hexagon

10x5mm Color-Change Lab-Grown Alexandrite, BLS113 Dutch Marquise Hexagon

$212.10 USD
$303.00 USD $212.10 USD
Sale Sold out
Taxes included. Standard shipping · Estimated delivery in about 2 weeks after dispatch.

BLS113

Low stock: 3 left

Import duties covered.

Standard: about 2 weeks after dispatch. Express: estimated 3–7 days after dispatch. Processing time is separate.

Returns: notify us within 14 days of receipt. Policy conditions and custom-order exclusions apply.

Shipping and returns details Refund policy

This approximately 1.20 carat Czochralski-pulled lab-grown alexandrite has a greenish blue face-up appearance that can shift toward red-purple or purple-red in warmer light. Its approximately 10x5mm Dutch Marquise Hexagon outline offers a crisp geometric option for a ring, pendant or custom jewelry design.

This is a repeat-production product. The supplied stone follows the same specified material, target dimensions and cutting style, but it may not be the exact stone shown in the representative photographs and video. Exact weight and measurements can vary between individually faceted stones, while color balance and reflections may vary slightly.

Stone details

  • Material: Lab-grown alexandrite, synthetic chrysoberyl
  • Growth method: Czochralski pulled
  • Post-growth treatment: None
  • Color appearance: Greenish blue, shifting toward red-purple to purple-red in warmer light
  • Trade cut: Dutch Marquise Hexagon
  • Laboratory shape: Hexagon
  • Laboratory cutting style: Brilliant & Step Modified
  • Measurements: Approximately 10x5x3.4mm
  • Weight: Approximately 1.20 carats
  • Clarity: Loupe-clean appearance
  • Laboratory report: Individual GFCO Gem Lab report included
  • Faceting location: Our gemstone-cutting facility in Bangkok, Thailand
  • Quantity supplied: One loose stone for each unit ordered
  • SKU: BLS113

Report and representative media

The gallery report is representative. The stone supplied with your order includes its own corresponding GFCO Gem Lab report with the laboratory findings, measurements, carat weight and individual report number. Color and reflections can vary with lighting, viewing angle and screen settings.

Custom cutting

Contact Brahma Diam to discuss repeat cutting, matched pairs or a custom size, subject to material availability and cutting feasibility.

Learn how the Czochralski pulling method works.

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