Djeva Green Lab Sapphire, Antique Cushion Cut, 7.2 Carats

SQO128

Regular price$580.00
/
Shipping calculated at checkout.

Gem Note

💚💚💚 Wow! Check out this stunning minty green lab sapphire, expertly crafted in a traditional antique cut. The vibrant color is simply begging to be transformed into an extraordinary piece of jewelry. This gemstone promises both exceptional beauty and durability, perfect for creating a keepsake that will endure through the ages!

 

DIMENSIONS AND SHAPE

Size: 10.96mm x 10.94mm x 7.56mm

Weight: 7.2  carats

Cut: Antique 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

  • Engagement Ring
  • Daily Wear
  • Pendant

Collections

  • Vivid
  • Dichroic
  • Djeva

🌍 GENERAL MATERIAL DESCRIPTION

  • Material Name:Djeva 78
  • Country of Origin : Switzerland
  • Growth Method: Flame Fusion

Djeva 78 represents the pinnacle of cobalt green sapphire in the market. The challenge in cultivating cobalt-doped sapphire stems from two primary difficulties. First, incorporating cobalt into the sapphire matrix is complex. Second, cobalt exhibits dual valence states (Co2+ for blue and Co3+ for green), and managing these states during the growth process demands stringent conditions. This material is priced significantly higher, costing 20-30 times more than flame fusion ruby, due to its intricate growth process and was produced in very limited quantities to meet a specialized demand. With the closure of Djeva, the prospects of finding a similar quality green flame fusion sapphire in the future are slim. It is, in many respects, considered one of the ultimate achievements in laboratory-created flame fusion green sapphire.

This material does not exhibit any fluorescence.

🏭 SPECIFIC Lot INFORMATION

Our stock of A grade Djeva 78 is limited. This grade enables the cutting of the deepest stones. Generally, the boules are small, restricting the size to 11/12mm.

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Djeva Green Lab Sapphire, Antique Cushion Cut, 7.2 Carats - DJEVA
Djeva Green Lab Sapphire, Antique Cushion Cut, 7.2 Carats
Djeva Green Lab Sapphire, Antique Cushion Cut, 7.2 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.