Cerulean Blue Lab Sapphire, Asscher Cut, 8.81 Carats
Cerulean Blue Lab Sapphire, Asscher Cut, 8.81 Carats
Cerulean Blue Lab Sapphire, Asscher Cut, 8.81 Carats

Cerulean Blue Lab Sapphire, Asscher Cut, 8.81 Carats

SQO1162

Regular price$610.00
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🔵🔷💠 This striking Asscher-cut, 8.81-carat cobalt ultra-blue gemstone presents a vivid deep-blue hue and an architectural faceting that delivers exceptional brilliance. Its robust cobalt-doped crystal structure offers excellent hardness and durability, making it well suited for daily-wear rings, bracelets, or pendants. The strong color saturation and subtle internal glow ensure a modern, eye-catching centerpiece for contemporary fine jewelry.

DIMENSIONS AND SHAPE

Size: 11.11mm x 11.11mm x 7.58mm

Weight: 8.81  carats

Cut: Asscher

Shape: Square

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

Pendant, Daily Wear, and Cocktail Ring

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🌍 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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🧠 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.