Materials and Process

STONES

Gemstones
Our gemstones are conflict-free and responsibly sourced.


Diamonds
Our diamonds are conflict-free and sourced through vetted Australian suppliers. Our larger diamonds come with either an Auscert certificate or a Gemological Institute of America (GIA) certificate. All GIA-certified stones come with a micro-laser inscription for traceability. All our diamonds are hand selected by designer Hamish Munro.


Blue Sapphires
Our Blue Sapphires are sourced directly from small-scale artisanal mines located in The Gemfields in central Queensland, Australia. These family-owned mines rely on hand mining and processing, ensuring minimal environmental impact and complete transparency throughout the process, from extraction to the final cut of the gemstone.



METALS

Gold
We work with 9ct & 18ct gold. Where possible, a component of the gold is recycled.

Sterling Silver
Sterling Silver is a mixture of naturally occurring silver, typically 92.5%, with the remaining made up of other metals. We work with an alloy mix of 94% pure Sterling Silver, 4.14% Copper, 1.8% Zinc, 0.06% Tin.

Platinum
Platinum is a rare and precious metal known for its durability and resistance to corrosion, wear and tarnishing. We typically work with an alloy mix of 95.2% pure platinum & 4.8% other metals.

Gold Vermeil
Gold Vermeil is a high-quality form of gold plating and is more resilient than standard gold plating. We work with a base of Sterling Silver plated with at least 3 microns of gold. This ensures a long-lasting finish. While durable, gold vermeil requires care to maintain it in optimal condition.

View our Care Guide HERE.



PROCESS

Hamish Munro jewellery is handmade by skilled craftsmen both locally and internationally. We work closely with suppliers who value transparency, fair work practices, and are committed to continually improving their environmental standards.

The Hamish Munro Studio is intentionally small-scale and high-touch. Each piece is made to order, or produced in small quantities, minimising footprint and impact. We take care to choose materials and apply practices that support utility and longevity. Our sustainability efforts are an ongoing process and part of our decision-making. Where possible we work locally, supporting independent suppliers and small businesses close to home.
Our team has a firsthand appreciation for developing each piece, from concept to design, sourcing, and production, interacting directly with our partners at every step. We value the details and strive to ensure they reflect our approach and way of working.

Read more about our story HERE.