Chloé Green Onyx Adjustable Ring - Marquise & Pear

GEMSA jewellery is designed to be worn, lived in, and cherished, with a little care along the way.

Each order includes a specially designed polishing cloth to gently refresh your piece and help maintain its natural glow. Use it lightly, stroking in one direction rather than circular motions. To preserve its effectiveness, please avoid washing the cloth.

To protect the beauty of gold-plated and vermeil pieces, we recommend avoiding jewellery cleaning solutions or harsh chemicals. Gentle polishing and mindful wear are all that’s needed.

For longevity, we suggest removing your jewellery before washing your hands, showering, swimming, exercising, or prolonged contact with water. Apply perfumes, lotions, and hair products first, allowing them to fully absorb before putting on your jewellery.

With these small rituals, your GEMSA pieces will age gracefully developing character and softness over time, just like the moments they accompany.

Yes. We offer a one-year warranty on all GEMSA jewellery from the date of purchase.

During this period, we are happy to provide complimentary repair, replacement, or replating for any manufacturing defects.

Our warranty reflects the way our jewellery is meant to be worn thoughtfully, with care, and enjoyed as intended.

Still have questions?
We’re always happy to help. Please email us at contact@gemsa.co.uk

Gently rub the surface of your piece with the polishing cloth as needed.
Please do not wash the cloth, as this will reduce its effectiveness.

Hallmarking is the official process of independently testing and certifying precious metals such as gold, silver, and platinum. In the UK, this is carried out by one of the recognised British Assay Offices to ensure the metal meets its stated standard of purity.

At GEMSA London, we take hallmarking seriously. Any piece that legally requires hallmarking under UK law is independently tested and hallmarked before it reaches you.

Pieces that meet the UK weight threshold are marked with:
• The metal fineness mark (such as 925 for sterling silver)
• The GEMSA sponsor’s mark, confirming our responsibility as the maker

These hallmarks are a quiet guarantee, not only of metal purity, but of integrity, traceability, and craftsmanship.

18K Gold Vermeil on 925 Recycled Sterling Silver, 100% Natural Green Onyx

Finish: Gold

Ring size: Adjustable design to fit multiple ring sizes

Stone size: Pear 7*5mm / Marquise: 8*4mm
Weight: 5.7g

Natural Gemstone Green Onyx

Crafted from 100% natural Green Onyx, responsibly sourced and hand-cut.

The name Onyx originates from the Greek word meaning fingernail. Ancient mythology tells that when Eros, the god of love, clipped his nails and they fell to Earth, they transformed into onyx, giving the stone its enduring connection to strength and protection.

Green Onyx is a rare and elegant variation of the onyx family, part of the chalcedony quartz group, prized for its smooth texture and rich, luminous depth. While visually refined, it has long been regarded as a stone of inner power and clarity.

Associated with the heart chakra and the planet Mercury, Green Onyx is believed to support clear thinking, enhance focus, and encourage confident self-expression.

Traditionally, it has been worn to promote calm, balance, and emotional steadiness, especially during moments that require clarity, communication, and presence.