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Ed Bristol
  
Ceylon Cobalt Spinel
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0.63 Carat (sold)
Richest Violet Blue
Medium Dark 75
Lightly Included

Details:


GRADING REPORT COS063

 

- Identification: Natural Unheated & Untreated Cobalt Spinel

- Carat: 0.63

- Shape: Trillion

- Measures: 6.70x5.52x3.02 (millimeter)

- Color Grade: Excellent

- Tone: MD75

- Color Zoning: None

- Clarity: Lightly Included

- Cutting Grade: Very Good

o       Brilliancy: 50%

o       Depth: 55%

- Origin: Sri Lanka

- Treatment: None

 

Certificate No: 1002616 (see more images)

 

Overall Grade: Very Good

Comment: The king of spinels: Cobalt blue. Certified, not wished for, genuine cobalt spinel (AIGS). Big face, but no window. You may only wish it was bigger. A revelation in the book of blue gemstones. No visible inclusions. Affordable dainty for the collector of finest gemstones. No fast food: Needs time and light.      

 

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