COBALT SPINEL 1.77 CTS 15859 - RARE COLLECTORS GEM

COBALT SPINEL 1.77 CTS 15859 - RARE COLLECTORS GEM

  • $220.00

Carats 1.77
Size 8.3 x 6.5 mm
Color Violet
Clarity VC
Shape Cushion
Treatment None
Origin Sri Lanka
Location Colombo,Sri Lanka
Price $ 220.00
100% Natural - Not treated in any way.
Rare Collectors Gem.
Suitable for Museums,Institutions and Students of Gemology.
Will make a Gorgeous Ring or Pendent accented with Diamonds.
Gem with High Luster and Good Clarity.
Large Sizes are Extremely Rare.
Among the Rarest of gemstones.
Cobalt Spinel - Extremely Rare type of Spinel found mostly in Sri Lanka.

Refractive Index: 1.718 (-.006, +.044)
Hardness: 8
Chemical Comp: MgAl2O4
Density: 3.60 (-.03, +.30)
Crystal Group: Cubic

Cobalt Spinel come in spectacular colors –Cobalt Spinel is Blue Spinel and enhances to red due to the presence of cobalt, and finest tones of Blue are comparable to the best Blue Sapphires. They are exceptionally beautiful, . very rare, hence quite expensive, are much sought after by collectors and connoisseurs alike. Found almost exclusively in Sri Lanka fine cobalt spinels are now rarer than rubies

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