Natural Ametrine 13.51 ct – Octagon, Untreated sale Stones of comparable size without

Stones of comparable size without internal features typically indicate either aggressive enhancement or synthetic origin and occupy a fundamentally different market category

adding brilliance and enhancing the overall luxury appearance

floral-inspired structure that enhances both brilliance and depth

The substantial size and balanced proportions make this gemstone particularly suitable for statement rings

Dunaigre Consulting (Switzerland) gemstone report

Natural Ametrine 13.51 ct – Octagon, Untreated sale Stones of comparable size withoutThis 13. 51 ct ametrine features a distinct bi color zoning of purple and yellow. The gemstone measures 13. 53 12. 58 9. 35 mm and is cut into an octagon shape. The clarity is eye clean, presenting transparency. This ametrine shows no indication of treatment. Sourced from Bolivia, this material offers a natural color spectrum. Ametrine is a quartz variety with naturally occurring color zones of amethyst and citrine within a single crystal.