Trends, behind-the-scenes stories and expert perspectives on lab-grown diamonds, moissanite and engagement ring design.
Long, slim fingers carry almost any engagement ring well, but elongated shapes (oval, marquise, pear, emerald) flatter the most. Bulky rings work too. Round and square sizes need to sit at 1ct or above so the stone does not look small. Here is the full breakdown.
Slightly loose is better than slightly tight. A well-fitted ring slides over the knuckle with light resistance, sits snugly at the base of the finger, and takes a gentle wiggle to come off. If you are between sizes, size up. Resizing larger is harder than resizing smaller.
Larger fingers carry substantial rings beautifully; the mistake is going too delicate. Elongated shapes (oval, emerald, pear) at 1.5 carats and up, bands from 2.3mm, and halo or three-stone settings all sit in proportion. Very thin bands and small solitaires are the ones to avoid.
For gold, carat measures purity, not weight: it tells you how many parts out of 24 are pure gold. 24ct is pure gold, 18ct is 75% gold, 9ct is 37.5% gold. Karat is the American spelling of the same measure. Diamond carat is a different unit entirely, a weight of 0.2 grams.
A green mark under a ring usually comes from copper in the metal reacting with moisture, skin products or household chemicals. It is a surface stain, but itching, swelling or a persistent rash can point to contact dermatitis.
Traditionally, each partner buys the other person's wedding ring. Many couples now choose and pay for both bands together, split the total or treat the rings as part of the shared wedding budget.
Mixed metal rings combine two metal colours in one ring or across a stack. Repeat one colour, keep the scale balanced and check how harder and softer metals meet when rings rub together.
Yellow gold and white gold can use the same gold purity, but they look and age differently. Yellow gold keeps its warm colour with simple polishing, while white gold usually needs rhodium replating to stay bright white.
A curved wedding band bends around an engagement ring so the two rings can sit close together. The right curve depends on the basket, halo, side stones and whether you want to wear the band on its own.
A lab-grown diamond lasts forever in every sense that matters. It is pure crystallised carbon, rated 10 on the Mohs hardness scale, and nothing in a human lifetime of wear degrades it. What has a lifespan is the ring around it: prong tips, rhodium plating and the band all need maintenance the stone never will.
A 2.5mm band reads structured and still lets the stone lead; a 3mm band becomes part of the statement. The 0.5mm gap is one of the most visible width steps in ring design. Here is how each wears, stacks and resizes, and which one suits an engagement ring versus a standalone wedding band.
A complete 2 carat lab-grown diamond engagement ring costs about $3,900 to $6,800 in Australia right now, and the loose stone alone runs $2,500 to $4,000 for E-F colour at VS clarity or better. Here is the full price breakdown with named specifications, checked 12 July 2026.
A complete 3 carat lab-grown diamond engagement ring costs about $4,700 to $9,000 in Australia right now, and a high-grade loose 3ct stone runs $3,900 to $9,600. A mined diamond at this weight starts five figures at low colours and reaches six at the top. Full specification-controlled breakdown, checked 12 July 2026.
Smaller AU ring sizes usually carry 1.8mm to 2mm best, average sizes 2mm to 2.5mm, and larger sizes 2.5mm to 3mm, then finger length, hand breadth, stone size and the wedding band you plan all shift the answer. Here is the full matrix, plus a printable width strip so you can check on your own hand.
A 1 carat round diamond measures about 6.5mm across, and the same weight in an oval stretches to about 8.3mm long. That is right on the worldwide average for engagement rings. Here is the size in mm for every shape, how 1 carat compares with 2 carats at one scale, and what it costs in AUD.
After five years of daily wear, the moissanite itself is unchanged: silicon carbide does not cloud, yellow or soften with age. What does change is everything around it, the metal, the prongs, the rhodium, and the film of skin oil that dulls sparkle until it is cleaned. This is a material and maintenance guide, not a review of one ring.
Snagging, uneven prongs, prongs too clunky for the stone, and prongs too thin to hold it. Four prong problems worth catching the day your ring arrives, plus what is normal wear versus what is a defect that needs fixing.
Bezel is the safest setting, but it is not for everyone. A low-profile basket setting with an integrated head in platinum is the next best thing: secure, snag-resistant, and beautiful. Here is how to pick a setting that holds the stone well without committing to a bezel.
Use a placeholder ring. Propose with a temporary ring (cubic zirconia in sterling silver works for photos), then choose the real one together after the yes. Roughly seven in ten women say they would not trust their partner to pick the final ring alone. Here is how the placeholder approach works.
Cut is not the shape of a diamond, it is the proportions: how the angles, depth, and symmetry let light enter the stone, bounce around, and return to your eye as sparkle. A poorly cut diamond looks dull and dead even at a high clarity or colour grade. Cut is the single most important of the 4Cs for how the stone actually looks.
Four things most people learn about oval diamonds after they buy: ovals look bigger for their carat weight, no certificate grades the cut quality, clarity is the safer place to compromise rather than colour, and the length-to-width ratio decides the look of the whole stone.
Natural diamond, lab-grown diamond, and moissanite are the three stones you will actually choose between for an engagement ring. Natural and lab-grown are chemically the same material (carbon). Moissanite is a different gemstone (silicon carbide) that costs roughly 10 to 20 percent of either diamond. Here is the AUD breakdown and how each one wears.
Slightly loose is better than slightly tight. A well-fitted ring slides over the knuckle with light resistance, sits snugly at the base of the finger, and takes a gentle wiggle to come off. If you are between sizes, size up. Resizing larger is harder than resizing smaller.
Yes, 1.5mm is too thin for a daily-wear engagement ring in gold. It bends with normal wear and re-shanking becomes a matter of when, not if. 1.8mm is the safe floor, 2mm is the comfortable choice, 2mm and wider is the minimum for pave.
Four prongs are enough for almost every engagement ring under 2 carats, as long as you get them checked once a year. Where it stops being enough is large stones, ovals over 1.5 carats, and very active hands.
Ignore it. The 3 month salary rule was a De Beers advertising campaign, not a tradition, and following it would mean spending around $22,500 on an average Australian salary. Australians actually spend about $5,000 on an engagement ring, and a $4,000 budget now buys a 2 carat lab-grown diamond ring.
VS2 is the smarter buy for almost every round, oval, cushion or pear under 2 carats. VS1 is worth the upgrade for step cuts (emerald, asscher) and for any stone above 2 carats. Both are eye-clean in normal viewing. Here is the full breakdown.
No. Lab-grown diamonds do not lose their sparkle, their shine, or their brilliance over time. They are the same material as a mined diamond and just as hard. When a lab diamond looks dull, the cause is a film of skin oil, soap, and lotion sitting on the stone, which cleans off in fifteen minutes.
A 2 carat round diamond measures about 8.1mm across, and the same weight in an oval stretches to about 10.5mm long. That is comfortably big: the average engagement ring diamond is around 1 carat worldwide and 1.2 carats in Australia. Here is the size in mm for every shape, how it looks on the hand and what it costs in AUD.
Long, slim fingers carry almost any engagement ring well, but elongated shapes (oval, marquise, pear, emerald) flatter the most. Bulky rings work too. Round and square sizes need to sit at 1ct or above so the stone does not look small. Here is the full breakdown.
The most durable engagement ring setting is a low-profile bezel or a basket-style setting with six platinum prongs on a 2.5mm or wider gold band. Three design decisions made at the bench (setting style, prong count, prong metal) do most of the work.
Most engagement ring bands sit between 1.6mm and 3mm. 1.8mm reads delicate, 2mm is the most common, 2.5mm is structured, 3mm reads bold. Here is how each width looks on the finger, stacks with a wedding band, and holds up to daily wear.
Both are step cuts from the same family. An emerald is rectangular and elongates the finger. An asscher is square with deeply cropped corners and a hall-of-mirrors look. Here is how to pick, and how an asscher differs from a square emerald.
Yes. A jeweller re-shanks the ring, which means replacing part or all of the band with thicker metal. Half-shank is cheaper, full shank gives even thickness right around. Expect $300 to $1,200 AUD depending on metal and complexity.
Yes. You can use your engagement ring as your wedding ring, and many couples do. The two-ring tradition was popularised by jewellers in the twentieth century; before that a single ring was the norm. It works best when the engagement ring is designed to stand alone (lower profile, wider band, secure setting).
Carat is a unit of weight (1 carat = 0.2 grams), not size. A 1 carat round diamond measures about 6.5mm across; the same weight in an oval stretches to about 8mm. Shape, cut depth, and density all change how big a stone looks for a given carat. Here is what carat weight actually buys.
The bow tie is a dark shadow shaped like a bow tie across the middle of elongated diamond shapes (oval, pear, marquise). It happens because of how light leaks through poorly aligned pavilion facets. Every oval has at least a subtle one. Whether it ruins the stone depends on how severe it is.
The fastest at-home gold tests are the hallmark check and the magnet test, which together rule out most fakes. An acid testing kit or electronic tester gives you a precise karat reading. Vinegar, bleach, and skin-discolouration tests don't reliably tell you anything.
The most reliable at-home diamond test is a dual thermal-and-electrical tester pen. The popular fog, water, and newspaper tests give you a partial answer, and none of the home methods can tell a lab-grown diamond from a natural one.
Taylor Swift's engagement ring from Travis Kelce is an 8-carat old mine cut diamond in a hand-engraved yellow gold setting by New York jeweller Kindred Lubeck of Artifex Fine Jewelry. Industry experts have valued it between $550,000 and $1 million USD.
In Australia, the engagement ring goes on the fourth finger of the left hand, the one nicknamed the ring finger. Here's why that became the default, where the tradition is different, and what happens to the ring during and after the wedding ceremony.
No. Lab-grown diamonds don't get cloudy with age; the crystal is inert carbon and cannot haze from the inside. The myth comes from cubic zirconia, which really does cloud up. Any haze you can see is soap, hand cream and skin oils sitting on the surface, and it cleans off in fifteen minutes.
Most Australian couples spend between $3,000 and $8,000 on an engagement ring, with the average sitting around $5,000. Here's what your money actually gets you at each price tier, why the old salary rules don't hold up, and how to stretch a budget further.
Give yourself 6 to 8 weeks for a made-to-order ring and 8 to 12 weeks for full custom. In-stock pieces can be ready in a week if you're up against a date. Here's how to work backwards from your proposal and when prices actually move during the year.
Most engagement rings can be resized one or two sizes up or down without trouble. Eternity bands, tension settings, and titanium can't. Here's what each kind of resize costs in Australia, how long it takes, and when replacement makes more sense.
Six prongs are slightly more secure; four prongs let in more light and read more modern. For most stones under 2 carats either is safe with annual checks. Here's how to choose based on stone size, shape, and how you actually live.
If your wedding band sits with a gap against your engagement ring, it's almost always the setting profile, not a defect. Here's what causes it, which fixes actually work (contour bands, spacers, soldering), and what each one costs in Australia.
No, not if it's a D VVS1 stone, cut well, and set in solid gold. The moissanite that looks fake online is almost always a low-grade stone in a plated setting. Here's how to tell, what to avoid, and what to say if someone asks.
If your engagement ring turned up damaged, the wrong size, or with a loose stone, Australian Consumer Law puts you in a stronger position than most sellers will admit. Here's what to document, what to say, and what each fix usually costs.
GIA stopped grading lab-grown diamonds on the 4Cs scale in October 2025. They now use a simpler Premium or Standard rating, with stones below the threshold returned ungraded. Here's what changed, why, and whether it affects what you should buy.
Longer reads on diamonds, gemstones, ring design and care, written to help you choose well and look after what you buy.
