The Royal Demi-Lune Brooch is drawn from a Victorian original, from an age when the crescent moon was one of the most loved brooch forms. A double row of graduated round diamonds swells at its widest point, framed by fine borders of smaller diamonds, so the crescent seems lit from within. 32 mm across, in 18k white, yellow or rose gold. Small enough for every day on a collar or lapel, and beautiful paired with a star.

Like every Atlas Carré piece, this brooch is made to order, so it can be made to suit the way you wear it: with a swivel bail to wear as a pendant, a barrette fitting for the hair, a clasp for a tubogas necklace, or as a pearl enhancer. Tell us how you would like to wear it and we will design the fitting for you.

Handcrafted to order from recycled precious metals, each piece is cast, assembled, and finished by hand to reflect its intended character. Gemstones are carefully chosen for their colour and brilliance, then precisely hand-set to complement the design and deepen the story it tells. Please allow 3 to 5 weeks for delivery, as each piece is thoughtfully crafted just for you.

To personalise your piece, including a different gold colour or finish, or alternative gemstone colours or types, please contact us to explore bespoke options.

Each Atlas Carré piece is handcrafted to order in solid gold, using recycled precious metals and a curated selection of lab-grown and natural gemstones. Selected designs are also available in gold vermeil.

Each design is individually cast from a bespoke model, with no mass-production moulds. Every piece is then assembled and polished by hand. Gemstones are individually hand set by our artisans to ensure precision, balance, and consistency across each piece.

Our lab-grown gemstones are chemically and optically identical to their natural counterparts, chosen for their clarity, colour, and durability.

All pieces are fully hallmarked in accordance with UK standards.

Lab-Grown Gemstones

Our gemstones are created using advanced techniques that replicate natural formation. They share the same chemistry, crystal structure, and hardness as mined stones, with the same colour, brilliance, and durability.

Each stone is carefully selected and hand set by our artisans. All diamonds are at least E–F colour and VS clarity, with stones above 0.5 ct IGI certified.

Natural Gemstones

Natural gemstones are available on request. We can source specific stones and colour-match to your preferences, depending on availability.

All natural gemstones are supplied with certification.


Recycled Precious Metals

We handcraft every piece from recycled gold and recycled silver. Precious metals can be refined and re-used endlessly without any loss of quality, reducing the need for new mining and preserving their beauty for generations.

Learn more about our materials

This piece is made individually for you in your chosen size, metal and gemstone. We begin from an Atlas Carré design, then prepare the piece for production around your selected specifications, including CAD adjustments where needed.

Each piece is cast, assembled, hand-polished and stone-set by artisans, with a typical delivery time of 3 to 5 weeks. We keep in touch throughout the process, from order confirmation to delivery and aftercare and resizing or repair, if needed.

Your jewelry is designed to last. Clean gently with a soft cloth, avoid harsh chemicals, and store in its pouch or a dedicated jewellery box.

Read full aftercare guide

International delivery to selected regions. All duties and taxes are included in the final price – no additional charges on delivery. Returns accepted within 30 days.

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