Fire Orange Lab Sapphire, House Of Sylas Cushion Cut, 16.1 Carats


Regular price$650.00
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Gem Note

This gem boasts a breathtaking and vibrant hue, sure to create an exquisite piece of jewelry that will endure through the years. The blend of orange and red is impeccably saturated, making it versatile for any color of metal setting. It offers a richer color and superior durability compared to any citrine on the market.



Size: 13.7mm x 13.71mm x 10.3mm

Weight: 16.1  carats

Cut: House Of Sylas Cushion

Shape: Cushion

Clarity: Loupe Clean

Inclusions: None

Treatment: None



MOHS hardness: 9.0

Pleochroism: Dichroic

Dispersion: 0.018

Density: 4.0

Refractive Index: 1.76

Chemical Formula: Al2O3


  • Cocktail Ring
  • Pendant
  • Daily Wear


  • Vivid
  • Fluorescent
  • Dichroic
  • Djeva


  • Material Name:Djeva 55sp
  • Country of Origin : Switzerland
  • Growth Method: Flame Fusion

Djeva 50sp, 55sp, 57sp, and 59sp represent a series of orange corundum variants that progressively become redder as their numbers increase. Each of these materials is doped with iron and chromium, contributing to their unique hues and causing them to exhibit red fluorescence. The 50sp variant contains a subtle brown undertone, bearing a resemblance to high-quality citrine. As the sequence progresses, both the brown and orange tones diminish, culminating in a reduction of these components in the higher numbers. The 55sp variant stands out as particularly remarkable for its striking balance between orange and orange-red shades, making it one of the most vibrant lab-created corundum colors, aside from ruby. This intense vividness is attributed to the presence of chromium, which is also responsible for the deep, vivid red of rubies. For those in pursuit of an intensely deep, mesmerizing red/orange shade with minimal brown undertones, the Djeva 55sp is the ideal choice.


After Djeva ceased operations, we acquired several batches of this color from various cutting facilities in Thailand.

  • In stock, ready to ship
  • Inventory on the way

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Fire Orange Lab Sapphire, House Of Sylas Cushion Cut, 16.1 Carats - DJEVA
Fire Orange Lab Sapphire, House Of Sylas Cushion Cut, 16.1 Carats
Fire Orange Lab Sapphire, House Of Sylas Cushion Cut, 16.1 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.