• Certificate Code:GEM000100061
• Date of Certificate: 28/02/2022
• Item: 1 pc. Faceted
• Weight: 7,521 ct.  
• Shape: Round 
• Size: 13,14x13x13x9,59mm
• Species: Natural Obsidian
• Variety: Natural Obsidian
• Origin: Tansania
• Other/Result: No traces of treatment. Obsidian is a is natural volcanic rock (natural glass). It is formed from volcanic lava that cooled too quickly for significant crystallization to occur. Nodular obsidian fragments that are transparent are termed Apache Tears. They can be naturally rounded due to water erosion and abrasion