Green Amethyst trillion concave gem - 10mm

Natural 10mm green amethyst trillion concave cut gemstone

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Natural 10mm green amethyst (prasiolite) in a stunning trillion concave cut. Ethically sourced from Brazil, eye-clean and perfect for statement jewellery.

  • £20.00


Description

Make a statement with this exceptional 10mm natural green amethyst, expertly cut into a striking trillion concave cut. Also known as prasiolite, green amethyst is prized for its soft sage-green colour, excellent transparency and remarkable brilliance.

Unlike traditional faceting, the concave cut features inward-curving facets that dramatically enhance light reflection, creating exceptional sparkle, depth and a captivating optical effect. Combined with the bold trillion shape, this gemstone is an outstanding choice for unique and contemporary jewellery designs.

Ethically sourced from Brazil, each gemstone is carefully selected for its eye-clean clarity, attractive colour and precision cutting. Every gemstone is individually photographed, ensuring you receive the exact stone you choose.

Gemstone Details

  • Gemstone: Green Amethyst (Prasiolite)
  • Shape: Trillion
  • Cut: Concave Faceted
  • Size: 10mm
  • Colour: Soft Natural Green
  • Clarity: Eye-clean
  • Treatment: Heat treated (standard for green amethyst)
  • Origin: Brazil
  • Hardness: 7 on the Mohs scale
  • Ethically sourced: Yes
  • Suitable for: Rings, pendants, earrings and bespoke jewellery

Why Choose a Concave-Cut Green Amethyst?

Concave faceting is a specialist cutting technique that produces significantly more brilliance than traditional flat facets. The curved surfaces reflect light from multiple angles, creating a vibrant display of sparkle and depth that makes every gemstone truly distinctive.

The 10mm trillion shape offers impressive presence, making it an ideal centre stone for statement jewellery.

Product Uses

  • Statement Rings
  • Engagement Rings
  • Cocktail Rings
  • Pendants
  • Drop Earrings
  • Necklaces
  • Fine Jewellery
  • Bespoke Jewellery
  • Jewellery Making

Frequently Asked Questions

What is a concave cut?

A concave cut uses curved facets rather than flat ones, creating greater light return and a unique three-dimensional appearance. It is a premium cutting style that requires exceptional craftsmanship.

Is green amethyst natural?

Yes. Green amethyst, also known as prasiolite, is a natural variety of quartz. Its green colour is produced through permanent heat treatment, which is standard within the gemstone industry.

Is this gemstone eye-clean?

Yes. We carefully select eye-clean green amethysts with excellent transparency and brilliance.

Will I receive the exact gemstone shown?

Yes. Every gemstone is individually photographed, so you receive the exact stone you select.


Product use

All gemstones sold by Gemstones Brazil are carefully selected loose natural stones, suitable for jewellery making, bespoke designs, engagement rings, and fine jewellery creations.

Each gemstone is sold unset, giving designers and goldsmiths full flexibility to create custom pieces and tailored settings.

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