Blue Cobalt YAG, Asscher Cut, 7.50 Carats
Blue Cobalt YAG, Asscher Cut, 7.50 Carats
Blue Cobalt YAG, Asscher Cut, 7.50 Carats
Blue Cobalt YAG, Asscher Cut, 7.50 Carats
Blue Cobalt YAG, Asscher Cut, 7.50 Carats
Blue Cobalt YAG, Asscher Cut, 7.50 Carats

Blue Cobalt YAG, Asscher Cut, 7.50 Carats

SQO1877

$510.00
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💎🌐🌠 If you love Swiss blue Topaz this vivid material, with a higher RI and higher durability, is sure to please! This striking 7.50-carat Asscher-cut gemstone, crafted from YAG material, offers both beauty and sustainability. Owing to its strong composition, it promises lasting resilience perfect for creating a unique piece of jewelry such as a pendant or ring. The precise Asscher cut enhances its natural brilliance, making the gem visually appealing from every angle. Its origin from repurposed industrial crystal scrap showcases an eco-friendly commitment to beauty. The durability and sustainable nature make it a captivating choice for all, merging aesthetics and eco-awareness in perfect harmony.

DIMENSIONS AND SHAPE

Size: 9.21mm x 9.2mm x 7.24mm

Weight: 7.5  carats

Cut: Asscher

Shape: Square

Clarity: Loupe Clean

Inclusions: None

Treatment:None

 

PHYSICAL PROPERTIES

MOHS hardness: 8.5

Pleochroism: 

Dispersion: 0.028

Density: 4.6

Refractive Index: 1.83

Chemical Formula:Y3A15O12


POSSIBLE JEWELRY APPLICATIONS

Pendant, Daily Wear, and Engagement Ring

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🌍 GENERAL MATERIAL DESCRIPTION

  • Material Name:Co:YAG
  • Country of Origin : Russia
  • Growth Method: HDSM

A single, unidentified producer, as we understand it, employs the HDSM method to cultivate YAG doped with cobalt (which we believe to be cobalt), exclusively for the gemstone market, with no known scientific applications. This material is available in a spectrum of Swiss blue hues, with the lightest being extremely faint. The outcome is an exceptionally brilliant and strikingly vivid blue gemstone. The deeper variants yield gems of remarkable quality, boasting superior dispersion, hardness, and refractive index compared to irradiated Swiss blue topaz, making them stand out in the realm of materials with a Mohs hardness exceeding 8. Among the most vibrant green to blue color ranges found in any substance are those of Yb:YAG, Co:YAG, and V:YAG.

🏭 SPECIFIC Lot INFORMATION

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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.