• Blue portrait-cut lab-grown sapphire viewed face-up vertically on white, with a broad transparent table and stepped hexagonal outline.
  • BLS128 Cornflower Blue Lab-Grown Sapphire rotation and scale video
  • Blue portrait-cut sapphire resting on fingers in a wider hand-scale view.
  • Blue portrait-cut hexagonal sapphire held face-up in tweezers against white, with an open transparent centre.
  • Blue portrait-cut sapphire tilted on white, showing the broad pale table and blue edge facets.
  • Angled face-up view of the blue portrait-cut sapphire with pale central reflections and darker blue points.
  • Low tilted view of the blue portrait-cut sapphire on white, showing bright step reflections along the edges.
  • Blue portrait-cut sapphire at a low face-up angle, with a broad light reflection across the shallow centre.
  • Blue portrait-cut sapphire held face-up vertically in tweezers against a fingertip for scale.
  • Blue portrait-cut sapphire resting face-up on fingertips, with the skin visible through the broad central table.
  • Tilted view of the blue portrait-cut sapphire on fingertips, showing its shallow step-cut edges.
  • Blue portrait-cut sapphire held upright face-up between fingertips for scale.
  • Blue portrait-cut sapphire resting on the back of a hand, showing its face-up size relative to the fingers.
  • Blue portrait-cut sapphire tilted across fingertips, showing pale reflections and blue edges.
  • Side profile of the blue portrait-cut sapphire held horizontally in tweezers, showing its shallow depth.
  • Side profile of the blue portrait-cut hexagonal sapphire resting on white, showing the shallow crown and pavilion.
  • Angled pavilion-side view of the blue portrait-cut sapphire in tweezers, showing broad blue facets.
  • Pavilion-side view of the blue hexagonal portrait-cut sapphire on white, showing broad pale facets.
  • Pavilion-side view of the blue portrait-cut sapphire held vertically in tweezers.
  • Blue portrait-cut sapphire held face-up in tweezers, with white visible through its large central table.
  • Representative sample GFCO report for lab-grown blue sapphire, with identifying numbers and some measurements masked. Each supplied piece has its own local laboratory report.
1 21

Cornflower Blue Lab-Grown Sapphire 16x10mm Dutch Marquise Hexagon Portrait Cut

Cornflower Blue Lab-Grown Sapphire 16x10mm Dutch Marquise Hexagon Portrait Cut

$726.00 USD
$726.00 USD
Sale Sold out
Taxes included. Standard shipping · Estimated delivery in about 2 weeks after dispatch.

BLS128

Low stock: 1 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

Cornflower-blue color and broad, open step facets give this lab-grown sapphire a clean-lined portrait-cut appearance. The nominal 16x10mm Dutch Marquise Hexagon design has a relatively shallow profile, with an approximately 16x10x4.3mm photographed sample.

Each order is for one loose, loupe-clean sapphire with its own local laboratory report. This is repeatable production; the supplied piece may differ slightly from the sample shown.

GEMSTONE DETAILS

  • SKU: BLS128
  • Material: lab-grown sapphire / synthetic corundum
  • Color: Cornflower Blue
  • Cut: Dutch Marquise Hexagon Portrait Cut with step facets
  • Face-up size: nominal 16x10mm
  • Approximate sample dimensions: 16x10x4.3mm; pieces may vary slightly
  • Weight: approximately 6ct; may vary per manufactured piece
  • Clarity: Loupe Clean
  • Treatment: Not Treated
  • Growth process: Czochralski Pulled; report wording may vary by piece

CHARACTER AND SETTING IDEAS

The elongated portrait outline and open step facets create clean geometric lines across the Cornflower Blue face-up color. Consider it for a pendant, brooch or statement ring. Plan the final design and setting with a qualified jeweler.

CLARITY AND SETTING GUIDANCE

Loupe Clean. Ask your jeweler to assess the individual stone and recommend a setting suited to its dimensions and intended wear.

PHOTOS AND VIDEO

The photos and video were taken in natural daylight and show a representative sample, not necessarily the piece supplied. Appearance can vary with lighting, viewing angle and screen settings.

LABORATORY REPORT

Each piece includes its own report from a professional local laboratory; the issuing laboratory may vary. The pictured representative GFCO sample report states “LAB GROWN SAPPHIRE; SYNTHETIC CORUNDUM,” “FANCY,” “STEP & STEP” and “BLUE.” These are the sample report’s terms and do not guarantee identical wording, grades, number, date, weight or dimensions on the report accompanying another piece.

CUSTOM SIZES AND MATCHING

Matched pairs, multiples and custom sizes or design proportions are available for discussion. Confirm availability and production timing before ordering.

ABOUT US

Brahma Diam Co., Ltd. is based in Bangkok, Thailand. We are gemstone and diamond cutters, with a gemstone-cutting facility in Bangkok and a diamond-cutting facility in Surat, India, serving jewelers, designers and private buyers.

SHIPPING

Processing time and available shipping services are shown at checkout. Standard shipping usually takes about two weeks after dispatch; preparation and reporting are separate, and customs can cause delays.

A distinctive geometric option for a custom jewelry design.

View full details