Natural Ametrine 17.18 ct - Octagon, Untreated Sapphire This gemstone is suitable for

This gemstone is suitable for custom jewelry commissions or for inclusion in a curated collection

a known source for this unique bi-color quartz

70 mm Shape Oval Colour Pink

This exceptional Swiss Blue Topaz weighs 47

Natural Ametrine 17.18 ct - Octagon, Untreated Sapphire This gemstone is suitable forThis 17. 18 ct ametrine exhibits a precise bicolor division of vivid purple and vivid yellow. The octagon cut highlights the distinct color zoning inherent to the material. The gemstone measures 16. 98 12. 45 9. 53 mm. It presents an eye clean clarity, showcasing the transparency of the amethyst and citrine quartz. This material shows no indication of treatment. Hailing from Bolivia, this ametrine is documented with a Sosna Gems Colored Stone Report,