Cobalt spinel 0.458ct loose Japanese-German appraisal

This beautiful blue. This hard shine has a Mohs hardness of 8. "Blue spinel" does not necessarily mean "cobalt spinel"; anything with a confirmed cobalt band is called "cobalt spinel". You will fall in love with its unique and beautiful blue color. In addition to cobalt, cobalt spinel comes in two types: those containing iron and those without iron. This type does not contain iron. It is a very attractive gemstone with its bright blue color. This is cobalt spinel with high saturation, and this color is large at 0.4ct. A certificate of identification from the Japan-German Gem Research Institute is included.

・Type: Loose (natural stone)
・Stone name: Cobalt spinel (cobalt band recognized)
・Weight: 0.458ct
・Scratch/chip: S
・Inclusion: A+
·remarks:---
・Accessories: Identification book (Japan-German Gem Research Institute), case

▷For more information about spinel
Spinel characteristics, types, fakes, value standards, etc.


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karatz_item_id: 12517143