1 Carat Engagement Rings

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One carat is the size most people picture when they imagine an engagement ring, and it is the most chosen size in our studio. It reads clearly at arm's length without overwhelming a slender hand.

What one carat looks like

A one carat round measures about 6.5mm across. An oval is roughly 7 x 5mm, a princess 5.5mm, an emerald 7 x 5mm, and a pear 8 x 5mm. Elongated shapes such as oval, pear and marquise cover more finger than a round of the same weight, so they wear larger than the number suggests.

Sizes are quoted as diamond equivalent, so a one carat moissanite matches a one carat diamond face up.

Choosing a band

One carat sits best on a band between 1.8mm and 2.2mm. Much wider and the stone starts to look smaller than it is. A hidden halo adds visible size without changing the silhouette from above.

If one carat feels close but not quite enough, compare it against two carat before deciding.

Every ring includes

GRC certified moissanite in D-E colour and VVS clarity, or an IGI certified lab grown diamond. 9k, 14k or 18k gold in white, yellow or rose, or platinum. Made to order and ready in six weeks, or three with express. Lifetime warranty on the stone and craftsmanship, one free resize within three months, and a free ring sizer posted before we cast.

Frequently Asked Questions About Moissanite Engagement Rings

Q1: What is the difference between moissanite and a real diamond?

A: Moissanite is a lab-grown gemstone with brilliance, fire, and clarity that rivals a natural diamond. Side by side, most people cannot tell them apart visually. Three differences worth knowing: moissanite throws slightly more fire (rainbow flashes) than a diamond because of its higher refractive index; it scores 9.25 on the Mohs hardness scale (a natural diamond is 10); and it costs around 10% of an equivalent-size diamond. Every moissanite we set is lab-grown, conflict-free, and traceable.

Q2: Will my moissanite engagement ring look like a real diamond?

A: Yes. Today's moissanite is engineered to be near-colourless and exceptionally clear, and to the naked eye it is virtually indistinguishable from a diamond. Even jewellers usually need specialised testing equipment to tell them apart. The most obvious difference is actually MORE sparkle — moissanite has a higher refractive index than diamond, so it can throw slightly more colourful flashes in bright light. Most people who notice the difference do so because the ring sparkles more, not less.

Q3: Can I customise the metal, stone size, or setting?

A: Yes — almost every ring in our collection can be customised. Choose 9k, 14k, or 18k gold (white, yellow, or rose), or platinum. Centre stones range from 1ct to 8ct as standard, with larger sizes available on request. Settings include solitaire, bezel, halo, hidden halo, three-stone, and accent-stone designs. For fully bespoke work, book a design consultation, by appointment, at our Melbourne studio in Southbank or via video call. Custom-made rings take up to 6 weeks to complete.

Q4: Is moissanite durable enough for everyday wear?

A: Absolutely. Moissanite scores 9.25 on the Mohs hardness scale — second only to diamond (10) — which makes it one of the hardest gemstones you can wear every day. It resists scratching, chipping, and clouding, and unlike many gemstones it will not lose its brilliance over time. Every ring we make comes with a lifetime warranty on the centre stone, so if anything ever happens we will repair or replace it.

Q5: How do I care for my moissanite engagement ring?

A: Caring for moissanite is straightforward. Clean it once a week with warm soapy water and a soft toothbrush, then dry with a lint-free cloth — this keeps it as brilliant as the day you collected it. Avoid wearing your ring during heavy gym sessions, swimming in chlorinated pools, or when using harsh chemicals (gardening or cleaning). Bring it in for a free professional clean and inspection every 6 to 12 months — included in our lifetime warranty.

Ready to find your ring?

Browse our collection or book a consultation to design something completely unique.