Lottery Sale_09 Lottery Sale 1028 [12517143] Cobalt Spinel 0.458ct Loose Stone Nihon-Dokukan [Gemstone Encyclopedia]

Such a beautiful blue. Such a hard shine, with a Mohs hardness of 8. "Blue spinel" does not necessarily mean "cobalt spinel"; only those with visible cobalt bands are called "cobalt spinel." The unique, beautiful blue color is captivating. Cobalt spinel comes in two types: one that contains iron in addition to cobalt, and one that does not. This is the type that does not contain iron. The bright blue color makes this gemstone very attractive.

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

▷We accept jewelry processing.If you would like to have your jewelry processed, please order along with the frame of your choice from the link below.
・[Select by stone] Simple order
・[Select from stones] Semi-custom
*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 .
*If you pay by credit card, we may contact you via security to verify your identity.



karatz_item_id: 12517143