Cerulean Blue Lab Sapphire, House Of Sylas Cushion Cut, 10.42 Carats

CQC196

Regular price$500.00
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Gem Note

😲 A perfect example of how saturated a cobalt sapphire can be.

 

DIMENSIONS AND SHAPE

Size: 12.34mm x 12.42mm x 8.42mm

Weight: 10.42  carats

Cut: House Of Sylas Cushion

Shape: Cushion

Clarity: Loupe Clean

Inclusions: None

Treatment: None

 

PHYSICAL PROPERTIES

MOHS hardness: 9.0

Pleochroism: Dichroic

Dispersion: 0.018

Density: 4.0

Refractive Index: 1.76

Chemical Formula: Al2O3

POSSIBLE JEWELRY APPLICATIONS

  • Business Wear
  • Engagement Ring
  • Daily Wear

Collections

  • Fluorescent
  • Dichroic

🌍 GENERAL MATERIAL DESCRIPTION

  • Material Name:FF Cerulean
  • Country of Origin : Thailand
  • Growth Method: Flame Fusion

Presently, a large fraction of contemporary cobalt flame fusion sapphire growth exhibits variegated coloration, characterized by intermittent regions of green and blue hue. On rare occasions, an entire boule achieves homogenous saturation in a vivid blue tone, yielding a distinct cerulean gemstone when subsequently faceted. This chromaticity markedly deviates from the conventional blue imparted by titanium and iron. These gemstones exhibit a subtle red fluorescence, discernible in outdoor sunlight conditions.

🏭 SPECIFIC Lot INFORMATION

Approximately 2-4% of cobalt flame fusion sapphire production in Thailand comprises this specific blue variant. Our current inventory of this particular material is characterized by limited availability.

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Cerulean Blue Lab Sapphire, House Of Sylas Cushion Cut, 10.42 Carats - DJEVA
Cerulean Blue Lab Sapphire, House Of Sylas Cushion Cut, 10.42 Carats
Cerulean Blue Lab Sapphire, House Of Sylas Cushion Cut, 10.42 Carats


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🧠 Gemology Literature

The articles cited here about lab created gemstones are all open source and chronologically sorted for quick and easy access. Each article comes from either the Journal of Gemmology (JofG) or Gems and Gemmology (G&G) archives.