Natural Ametrine 10.71 ct – Octagon, Untreated sapphire pair With VVS clarity and heat

With VVS clarity and heat treatment to enhance its soft tone

Its octagon shape presents broad facets that reflect light

ideal for custom high-end jewelry

Gemological testing by GRS Gemresearch Swisslab reports “No indication of thermal treatment”

it captures a delicate balance of warmth and brilliance

Natural Ametrine 10.71 ct – Octagon, Untreated sapphire pair With VVS clarity and heatThis 10. 71 ct ametrine displays a vivid purple alongside a light yellow, characteristic of its natural bi color zoning. The gemstone's exceptional clarity is eye clean. The octagon cut ametrine from Bolivia measures 12. 41 10. 92 9. 64 mm. Its untreated status is documented with a Sosna Gems Colored Stone Report, our internal gemstone report. Independent laboratory certification is available on request.