Moissanite Engagement Rings Australia

Moissanite is the stone to choose when you want serious sparkle and a durable daily-wear ring at a fraction of diamond pricing. It is silicon carbide rather than carbon, so it is a different gemstone with its own personality: more rainbow fire than diamond, 9.25 on the Mohs hardness scale, and it does not cloud, yellow or soften with age. Step back to the full engagement ring collection if you want to compare moissanite against lab-grown diamond side by side.

• More fire than diamond: moissanite throws distinctly rainbow flashes, most obvious in direct sun and under downlights. Some people love it, some prefer diamond's whiter light; our moissanite vs lab-grown diamond comparison shows both in real lighting.
• Built for daily wear: at 9.25 on the Mohs scale, only diamond is harder. The stone itself outlasts the setting, and after five years of wear it is the prongs and plating that need attention, never the moissanite.
• The budget goes further: the same money buys a visibly larger stone, a heavier setting or a full custom design. What that actually costs is in the price section below, with real numbers.
• Honest about what it is: moissanite is not a diamond and we never sell it as one. It can even pass an older thermal diamond tester, which surprises people; the full story is in does moissanite pass a diamond tester.

Complete made-to-order moissanite engagement rings start at about $1,800 with us and rarely pass $4,000 even at very large sizes. The stone is priced by its millimetre size and the setting by metal and band width, so the maths is simple and worth seeing in diamond-equivalent terms. Prices below were checked on 12 July 2026 and can move with metal prices.

For context, the same 2ct-equivalent look in a certified lab-grown diamond runs from about $3,900 as a complete ring in Australia, and mined diamonds run five figures at that size. If you are weighing the two stones, the side-by-side comparison covers sparkle, testers, care and resale honestly. Sizes convert between shapes on our diamond carat size chart.

Three decisions do most of the work: the shape, the size in millimetres, and the setting. Moissanite is sold by mm size rather than carat weight, because it is lighter than diamond and carat labels mislead across the two materials.

• Shape first: round gives the most classic sparkle, ovals and pears stretch the finger and read larger for the money. Elongated shapes are our most requested moissanite brief. Start with moissanite solitaires or oval designs.
• Size for your hand, not the label: an 8mm round covers the same finger as a 2ct diamond. Our carat size chart shows every equivalent in mm so you can draw the size on paper before deciding.
• Setting and metal: every design comes in 14k or 18k gold in three colours, or platinum, with band widths from 1.8mm. Moissanite's extra fire suits both a plain solitaire and a hidden halo; on wide-open step cuts, ask us about the specific stone because the faceting differs from diamond.
• Timing: made-to-order solid gold pieces take about three weeks in production once the design is approved; the full timeline is on our delivery and warranty page.
• Want something one of a kind: the same stones feed our custom design process, where you work directly with us from sketch to finished ring.

We are a small Melbourne studio, and every ring is made to order for one person, so we would rather show you seven real reviews than a wall of anonymous stars. At last count we hold a 5.0 rating from 7 reviews on our Google Business Profile; here are a few of them, word for word.

Brittany

"My boyfriend and I had the best experience at Lily Dia designing my dream engagement ring. Brie was super helpful..."

Alejandro

"You accompanied me throughout the entire process and were my partners in making my engagement ring come to life..."

James

"Jared was amazing to work with. He was patient, knowledgeable, and made the whole process feel easy..."

Elavara

"Such a great experience buying my eternity ring. Brie was amazing. Process was seamless. Ring is stunning. Highly recommend!"

You will deal directly with Brie and Jared from the first message to the finished ring. If something is not right, we keep working on it until it is; that is the practical advantage of a studio this size, and it is why the reviews read the way they do.