• Face-up view of a yellow elongated hexagonal gemstone on a pale background.
  • Yellow elongated hexagonal gemstone rotated in tweezers and shown on fingers for scale.
  • Open GFCO report showing a yellow gemstone image, measurements, testing information and signatures.
  • Yellow elongated hexagonal gemstone viewed diagonally, showing its table and surrounding facets.
  • Pavilion view of a yellow elongated hexagonal gemstone resting on a pale surface.
  • Yellow elongated hexagonal gemstone resting face-up on fingers.
  • Yellow elongated hexagonal gemstone held face-up between metal tweezers.
  • Yellow faceted gemstone viewed face-up at a slight angle with a pale central reflection.
  • Yellow faceted gemstone on fingers with bright reflections near both pointed ends.
  • Pale yellow pavilion facets of a gemstone held vertically between tweezers.
  • Yellow gemstone on fingers with a bright white reflection across its table.
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Yellow Lab-Grown Sapphire, 12x6mm Dutch Marquise, Modified Brilliant Cut, GFCO Report

Yellow Lab-Grown Sapphire, 12x6mm Dutch Marquise, Modified Brilliant Cut, GFCO Report

$363.00 USD
$363.00 USD
Sale Sold out
Taxes included. Standard shipping · Estimated delivery in about 2 weeks after dispatch.

BLS207

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

A yellow lab-grown sapphire in a nominal 12x6mm Dutch marquise / elongated hexagon outline, with a modified brilliant cut. Each supplied gem includes its own original GFCO report. This repeat-production listing uses representative product photos and merchant-finished video; the pictured individual is not guaranteed.

GEMSTONE DETAILS

  • SKU: BLS207
  • One loose sapphire per purchase; setting is not included.
  • Color: yellow; GFCO records YELLOW.
  • Nominal size: 12x6mm. Purchased by millimetre size.
  • Trade shape and cut: Dutch marquise / elongated hexagon, modified brilliant cut.
  • Clarity: eye clean.
  • Growth: Czochralski pulled.
  • Treatment: no treatment after growth.
  • The pictured example weighs approximately 2.78ct; weight and pictured measurements are not guaranteed for every replenishment.

Learn about Czochralski-pulled lab-grown sapphire in our Czochralski sapphire guide.

CHARACTER AND SETTING IDEAS

The elongated geometric outline can be considered for a ring center stone or a pendant. The setting is not included.

CLARITY AND SETTING GUIDANCE

This sapphire is eye clean. Choose a setting suited to the outline and intended design, and consult your jeweler about setting details.

PHOTOS AND VIDEO

The representative product photos and merchant-finished video were taken in natural light. Appearance can vary with light, angle, background and screen. The media represent the product, not a guarantee of the pictured individual.

LABORATORY REPORT

Each supplied gem includes its own original GFCO report. The pictured example's report is GFCO AXP21849, code 49588-1, dated 2026-10-08. It records 2.78ct and 12.10x6.08x5.32mm. Those pictured identifiers, weight and measurements are not guaranteed for every replenishment. The report records shape as HEXAGON, description FANCY & FANCY, and Czochralski production.

ABOUT US

This sapphire was faceted in our own Bangkok gemstone-cutting unit. Brahma Diam Co., Ltd. is based in Bangkok and also has a separate diamond-cutting facility in Surat. We do not deal in rough.

SHIPPING

Processing takes 2-3 business days. Delivery details are shown at checkout; timing is not guaranteed.

A loose yellow sapphire for a considered geometric jewelry design.

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