Tanzanian Cobalt Spinel 0.458ct Loose Stone with Certificate of Authenticity

This beautiful blue. This hard shine with a Mohs hardness of 8. "Blue spinel" does not necessarily mean "cobalt spinel", but only those with visible cobalt bands are called "cobalt spinel". This is a cobalt spinel from Tanzania featured in the gemstone encyclopedia.

Type: Loose (natural stone)
・Stone name: Cobalt spinel
・Weight: 0.458ct
・Size: 6.2×4.0mm
Shape: Pear shape ・Scratches/chips: S-A+
Inclusions: A+
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・Accessories: Certificate of Authenticity (small size) (Japan-Germany Gemstone Research Institute), loose case (if it does not fit, a clear case with a zip)

▷Jewelry processing available
If you would like to have your item made into jewelry, please order it along with your desired setting using the link below.
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*If you would like an image of the stone in the frame, would like to discuss a full order, or have any other concerns or questions, please feel free to contact us here .
*Raw stones are not available. There are also some stones that cannot be handled.

*We try to make the colors in the photos as close as possible to the actual product, but they may look slightly different from the actual product depending on the lighting conditions at the time of shooting and the monitor environment you are using. Also, some photos may have been taken using a penlight.

*For information on scratches, chips, treatments, and inclusions, please click here .

*For other frequently asked questions, please click here .


karatz_item_id: 12559971