Sapphire Mia centres a 1.78ct blueish-teal Australian oval sapphire with two oval lab-grown diamonds totalling 0.29ct in a cathedral three stone setting in 18k yellow gold. The teal colour of the sapphire sits between blue and green and shifts between the two depending on the light source.

Certified natural sapphire (Sapphire Dreams certificate). Designed and made by Matthews Jewellers, Newcastle. Fine jewellers since 1957.

Centre Carat Weight: 1.78ct Natural Sapphire

Colour: Teal Blue

Setting Style: Cathedral Three Stone

Band Width: 2mm x 1.6mm

Metal Colour: 18k Yellow Gold

Finger Size: M

Free re-sizing and shipping available within 24 hours of purchase (Monday to Friday).

Enjoy 20% off your wedding rings and 10% back in Matthews Money when you purchase your engagement ring with us.

Changed your mind? No problem.

We offer free 30-day returns on all Ready to Wear pieces purchased online.

Simply contact us for a free prepaid satchel — just ensure your item is in its original boxing before sending it back.

Your original postage bag is reusable, so place your item inside, seal it up, and send it our way.

We offer complimentary resizing for the lifetime of your engagement ring. If you need your ring resized before it’s shipped, please let us know and include your preferred size in the notes section at checkout.

Not sure on the size? Your piece can be resized after your proposal. Get in touch and we can organise this.

We offer complimentary Express Shipping Australia-wide on all orders. Each piece is carefully packaged and fully insured for peace of mind during transit.

For ready-to-wear items, please allow 2-3 business days for dispatch. Made-to-order and custom pieces typically take 6–8 weeks. Need it sooner? Contact us—we’ll do our best to accommodate your timeline.

With decades of experience and a proud family legacy, we stand behind every piece that leaves our workshop. Each item is a reflection of our craftsmanship, integrity, and care—backed by our Lifetime Guarantee. When you choose us, you're choosing quality that lasts a lifetime.