Djeva Fire Blue Lab Spinel, Cushion Step Cut, 23.85 Carats

CQC223

Regular price$800.00
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Gem Note

๐Ÿ’™๐Ÿ”ต๐ŸŸฆ If you're seeking the most brilliant blue gemstone available, whether natural or lab-created, look no further! This stone's unparalleled vivid blue hue promises to transform into a breathtaking piece of jewelry. Its timeless cushion step cut allows for a flawless integration into both traditional and modern styles. Made from the rare, no longer produced djeva stock, this gemstone's resilience guarantees a lifetime of wear.

 

DIMENSIONS AND SHAPE

Size: 16.77mm x 16.8mm x 11.94mm

Weight: 23.85  carats

Cut: Cushion Step

Shape: Cushion

Clarity: Loupe Clean

Inclusions: None

Treatment: None

 

PHYSICAL PROPERTIES

MOHS hardness: 8.25

Pleochroism: 

Dispersion: 0.018

Density: 3.61

Refractive Index: 1.72

Chemical Formula: MgAl2O4

POSSIBLE JEWELRY APPLICATIONS

  • Cocktail Ring
  • Pendant
  • Brooch

Collections

  • Vivid
  • Djeva

๐ŸŒ GENERAL MATERIAL DESCRIPTION

  • Material Name:Djeva 114
  • Country of Origin : Switzerland
  • Growth Method: Flame Fusion

Djeva's "Fire Blue" cobalt spinel stands out as the most vibrant and deeply colored blue gemstone material available. While cobalt glass shares a similar intensity in color, it falls short in terms of refractive index, dispersion, and durability.

The flame fusion cobalt spinel is essentially a type of beta-corundum. The process of cultivating a pure spinel crystal through flame fusion may lead to cracking as it cools. However, integrating additional alumina powder (corundum powder with a Mohs hardness of 9) into the mix enhances the crystal's resilience and strength, preventing it from cracking upon cooling. This modification not only fortifies the crystal but also elevates its hardness to a Mohs rating of 8.25, surpassing the typical hardness of standard spinel.

Cobalt blue spinel presents a fascinating characteristic of red fluorescence. While some specimens exhibit this glowing feature, others do not; however, all of them display vivid red flashes when illuminated under full-spectrum lighting. This phenomenon is truly intriguing!

๐Ÿญ SPECIFIC Lot INFORMATION

Djeva 114 "Fire Blue" holds a unique place in gemstone lore, with its production having ceased. Presently, several manufacturers of cobalt flame fusion spinel endeavor to match the luminosity of Djeva's creation, yet none have achieved comparable brilliance. The only other option is spinel grown through the Czochralski method, which comes with a steep price tag. For those seeking a dazzling blue gem that combines beauty with durability to stand the test of time, this material might just be the ideal choice.

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Djeva Fire Blue Lab Spinel, Cushion Step Cut, 23.85 Carats - DJEVA
Djeva Fire Blue Lab Spinel, Cushion Step Cut,  23.85 Carats
Djeva Fire Blue Lab Spinel, Cushion Step Cut,  23.85 Carats
Djeva Fire Blue Lab Spinel, Cushion Step Cut,  23.85 Carats
Djeva Fire Blue Lab Spinel, Cushion Step Cut,  23.85 Carats
Djeva Fire Blue Lab Spinel, Cushion Step Cut,  23.85 Carats

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