Cobalt Teal Lab Sapphire, House Of Sylas Cushion Cut, 9.97 Carats

SQO1

Regular price$500.00
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Gem Note

💙Awesome "lagoon blue" sapphire that will make a piece of jewelry to last a lifetime!

 

DIMENSIONS AND SHAPE

Size: 12.0mm x 12.0mm x 8.61mm

Weight: 9.97  carats

Cut: House Of Sylas Cushion

Shape: Cushion

Clarity: Loupe Clean

Inclusions: None

Treatment: None

 

PHYSICAL PROPERTIES

MOHS hardness: 9.0

Pleochroism: 

Dispersion: 0.018

Density: 4.0

Refractive Index: 1.76

Chemical Formula: Al2O3

POSSIBLE JEWELRY APPLICATIONS

  • Daily Wear
  • Cocktail Ring
  • Pendant

Collections

  • Dichroic

🌍 GENERAL MATERIAL DESCRIPTION

  • Material Name:FF Teal Dark
  • Country of Origin : Unknown
  • Growth Method: Flame Fusion

In the sapphire crystal lattice, the chromophore cobalt demonstrates two distinct valence states: Co2+ (resulting in a blue coloration) and Co3+ (yielding a green hue), contingent upon factors such as temperature, atmospheric conditions, and growth parameters. The resultant coloration can span a spectrum from green to teal to blue, contingent upon the relative abundance of Co2+ and Co3+. These crystals consistently exhibit color variegations, primarily stemming from the intricate challenge of precisely controlling all growth conditions, thereby bestowing upon each gem a distinct and unique hue.

🏭 SPECIFIC Lot INFORMATION

This material exhibits a notably inconsistent texture akin to the majority of cobalt-doped flame-fusion sapphires. Its provenance remains uncertain. The boules are characterized by their substantial size, typically displaying a predominantly pale green-yellow hue. However, a limited selection of sections can be to reveal an exquisite light blue-green colored gemstone.

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Cobalt Lab Sapphire, House Of Sylas Cushion Cut, 9.97 Carats - DJEVA
Cobalt Teal Lab Sapphire, House Of Sylas Cushion Cut, 9.97 Carats
Cobalt Teal Lab Sapphire, House Of Sylas Cushion Cut, 9.97 Carats
Cobalt Teal Lab Sapphire, House Of Sylas Cushion Cut, 9.97 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.