Natural untreated ametrine, 8.24 carats, emerald cut, clarity: slightly included, purple and golden yellow bi-color quartz, measuring 14.26 × 10.59 × 6.73 mm

Natural Ametrine 8.24 ct – Purple/Yellow, Emerald Cut, Untreated

Name: Natural Ametrine 8.24 ct – Purple/Yellow, Emerald Cut, Untreated
Brand: SOSNA Gems & Jewellery
SKU: AMR-0002
Price: 3252.00 CZK
Availability: InStock

3.252,00 CZK

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Gemstone Specification

Carat Weight 8.24

Dimensions 14.26 x 10.59 x 6.73 mm

Color Bicolor - Purple / Yellow

Clarity Eye Clean

Shape Octagonal

Treatment No Treatment

Origin Bolivia

Certification Sosna Gems Colored Stone Report

This natural ametrine weighs 8.24 carats and is beautifully fashioned in a classic emerald cut, measuring 14.26 × 10.59 × 6.73 mm. The gemstone displays the unique color zoning that makes ametrine so distinctive, combining delicate purple amethyst tones with warm golden citrine hues within a single crystal. With clarity graded as slightly included, the stone retains good transparency while showcasing its natural character. Untreated and naturally colored, this gemstone exhibits the authentic bi-color appearance that has made ametrine a favorite among collectors and jewelry enthusiasts.

Ametrine is a rare and fascinating variety of quartz formed by the natural combination of amethyst and citrine, creating a striking two-color appearance highly valued by gemstone enthusiasts. The elegant emerald cut enhances the contrast between the colors while emphasizing the gemstone's clarity and geometric beauty. Its attractive color combination, natural untreated origin, and distinctive appearance make this gemstone an excellent choice for collectors and custom jewelry designs seeking something truly unique.

Comes with a standart seller’s certificate; GIA or IGI certification available upon request.

Natural Ametrine 8.24 ct – Purple/Yellow, Emerald Cut, Untreated

3.252,00 CZK

From gemstone to jewelry

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Gemological overview

Technical and gemological information about this gemstone variety.

Gemological profile

Ametrine is a naturally occurring bicolor variety of quartz, combining purple amethyst and golden citrine within a single crystal. It is valued for its distinctive color zoning, which creates a clear visual contrast between violet and yellow tones, making each stone inherently unique.
Chemically composed of silicon dioxide (SiO₂), ametrine belongs to the silicate mineral group and crystallizes in the trigonal crystal system, like other quartz varieties. In gem-quality specimens, it typically displays a vitreous luster and transparent clarity.
The refractive index of ametrine generally ranges from 1.544 to 1.553, resulting in a soft, balanced brilliance rather than strong dispersion. Natural ametrine is found almost exclusively in Bolivia, where geological conditions allow the coexistence of both color zones within a single crystal.

Durability & suitability

Ametrine is a naturally occurring bicolor variety of quartz, combining purple amethyst and golden citrine within a single crystal. It is valued for its distinctive color zoning, which creates a clear visual contrast between violet and yellow tones, making each stone inherently unique.
Chemically composed of silicon dioxide (SiO₂), ametrine belongs to the silicate mineral group and crystallizes in the trigonal crystal system, like other quartz varieties. In gem-quality specimens, it typically displays a vitreous luster and transparent clarity.
The refractive index of ametrine generally ranges from 1.544 to 1.553, resulting in a soft, balanced brilliance rather than strong dispersion. Natural ametrine is found almost exclusively in Bolivia, where geological conditions allow the coexistence of both color zones within a single crystal.

Treatments & authenticity

With a hardness of 7 on the Mohs scale, ametrine offers good durability suitable for everyday jewelry when properly set and worn with standard care. It performs reliably in a variety of designs, particularly in pendants, earrings, and rings with protective settings.
Due to its characteristic color zoning, ametrine is often cut to emphasize the contrast between amethyst and citrine areas, making orientation and setting especially important. Its combination of durability, visual interest, and size availability makes it well suited for expressive, statement-oriented jewelry designs as well as distinctive everyday pieces.

Our approach to gemstones

We focus primarily on natural, untreated gemstones, valued for their authenticity and inherent beauty.
Any treatments or enhancements are always clearly disclosed, allowing our clients to make informed decisions based on transparent gemological standards.

Sosna Gems is not a licensed financial advisor. Gemstones are collectibles, not securities. Past performance is not indicative of future results. Legal & risk disclosure .