Natural Ametrine 10.55 ct – Octagon, Untreated supplier-legacy confirming its natural and untreated

confirming its natural and untreated origin — a rare and highly desirable feature in sapphires

The bar is sealed in tamper-evident packaging and benefits from the long-standing institutional credibility of Münze Österreich

Sourced from Tanzania — the world’s only known origin of tanzanite — this gemstone remains one of the most distinctive blue gemstones in modern fine jewelry

the gemstone offers exceptional transparency and brilliance

Displaying an intense neon blue color highly sought after by collectors

Natural Ametrine 10.55 ct – Octagon, Untreated supplier-legacy confirming its natural and untreatedA natural ametrine of 10. 55 ct, this gem displays the distinct bi color zoning of light purple and light yellow. Its octagon shape highlights the clarity of the material. The gemstone measures 13. 30x11. 51x8. 23 mm. It is eye clean. This Bolivian ametrine shows no indication of treatment. It is documented with a Sosna Gems internal report.