• Face-up view of a teal green-blue lab-grown sapphire on a white background, showing its elongated hexagonal shape.
  • Angled teal lab-grown sapphire on a textured pale surface, showing bright blue-green and dark facet reflections.
  • Teal lab-grown sapphire on a brown leaf, showing a broad central reflection and blue-green edge facets.
  • Wider view of a teal lab-grown sapphire on a brown leaf, showing its size relative to the leaf veins.
  • Teal lab-grown sapphire positioned diagonally on a white background, showing bright and dark blue-green facets.
  • Angled teal lab-grown sapphire on a white background, showing a broad pale central reflection and blue-green edges.
  • Information card about Czochralski-pulled laboratory-grown gemstones.
  • Open GFCO Gem Lab report held in a hand, with a prominent SAMPLE watermark across the pages.
  • Teal lab-grown sapphire resting against fingers, showing its elongated shape and bright blue-green facets.
  • Wider view of a teal lab-grown sapphire against fingers for scale.
  • Angled close-up of a teal lab-grown sapphire against fingers, showing a broad pale central reflection.
  • Teal lab-grown sapphire against a fingertip, showing its pointed ends and blue-green edge reflections.
  • Horizontal face-up view of a teal lab-grown sapphire on a textured pale surface, with dark teal facet reflections.
  • Wider view of a teal lab-grown sapphire on a textured pale background, showing its elongated hexagonal outline.
  • Angled close-up of a teal lab-grown sapphire on a textured pale surface, showing light and dark blue-green facets.
1 17

12×6 mm Teal Green-Blue Lab-Grown Sapphire — Dutch Marquise Hexagon

12×6 mm Teal Green-Blue Lab-Grown Sapphire — Dutch Marquise Hexagon

$330.00 USD
$330.00 USD
Sale Sold out
Taxes included. Standard shipping · Estimated delivery in about 2 weeks.

Individually faceted in our own Bangkok cutting facility, this approximately 12 × 6 mm teal green-blue Czochralski-pulled lab-grown sapphire features a Dutch marquise elongated-hexagon outline with brilliant-style facets. Offered as one loose stone, with a matching GFCO Gem Lab report.

The stone you receive

This is a repeat-production listing, not a one-of-a-kind stone. Photos and video show representative BG0078 production. Your sapphire will use the same lab-grown material, shape and cutting style, but may not be the exact stone pictured.

The standard face-up size is approximately 12 × 6 mm, with a normal production tolerance of ±0.2 mm for length and width. Small differences in colour tone, weight and reflections are normal between individually faceted stones. This design is offered by approximate face-up size; carat weight varies between stones. If precise fit or colour matching matters, contact us before ordering to confirm measurements, colour and availability.

Stone details

  • Material: Lab-grown sapphire (synthetic corundum), not natural or mined
  • Growth method: Czochralski pulled
  • Colour: Teal green-blue / blue-green
  • Shape: Dutch marquise / elongated hexagon
  • Cut: Brilliant-style faceting
  • Face-up size: Approximately 12 × 6 mm; tolerance ±0.2 mm for length and width
  • Supplied size range: 11.8–12.2 mm long and 5.8–6.2 mm wide
  • Approximate weight: Target approximately 2.40 carats; supplied range 2.10–2.70 carats
  • Post-growth treatment: None
  • Report: Matching GFCO Gem Lab report included
  • Faceting: Our own cutting facility in Bangkok, Thailand
  • Quantity supplied: One loose stone
  • SKU: BG0078

About the growth method

We precision-cut this sapphire from selected Czochralski-pulled material suitable for this design. This controlled, seed-grown process draws a crystal from a melt. This material is suitable for precise fancy cuts. “Pulled” describes the growth method; it does not mean natural or mined.

Learn how the Czochralski pulling method works.

Your stone and report

Any report shown in the gallery is representative. The GFCO Gem Lab report supplied will correspond to the sapphire you receive. Growth-method, treatment and clarity descriptions are our product information, not GFCO findings unless stated on the supplied report. For current-stone photographs or availability for a particular date, please contact us.

Photos, setting and custom cutting

Our gemstone photos and video were captured in natural daylight. Lighting, viewing angle and screen settings can affect the colour and reflections you see. Your jeweler should confirm the final fit against the supplied stone and protect both pointed ends during setting.

For another size or shape, matched pairs or repeat-production quantities, contact Brahma Diam to discuss your project.

Low stock: 3 left

BG0078

View full details