2 Carat Lab Diamond Ring Price in Australia

Our complete 2 carat lab-grown diamond engagement rings cost $4,250 to $5,950 in solid 18k gold, and a little more in platinum. Every one has a 2.00 to 2.09ct centre diamond in E to F colour and VVS1 clarity with an IGI report, set on a 2mm band, and the price includes the diamond and the setting.

View our 2 carat collection

Radiants are the most affordable shape at this weight, from $4,250, and ovals start at $4,500. Pear, elongated cushion and marquise rings cost the most, from $5,000 to $5,350. The cheapest design in each shape:

Halo, pavé and three stone designs cost more than the plain solitaire in the same shape. Across the market, the mainstream Australian retailers we checked on 12 July 2026 priced complete 2 carat rings between $3,920 and $6,752, depending on metal, setting and stone grade.

That headline range only means something once you split it into its three parts, because every "from" price you see online is anchored to a different stone:

• The loose stone. Loose 2.00 to 2.09ct lab-grown diamonds on our feed, all D to F colour and VS1 or better, mostly ran $2,280 to $3,160 on 28 September 2026. Entry-level 2ct lab stones in H colour started around $1,250 elsewhere in July, and that grade difference is where most cheap headlines come from.
• The setting. A made-to-order solid gold or platinum solitaire setting runs about $1,260 to $1,910 at our studio depending on metal, band width and style.
• The complete ring. Stone plus setting, which is the only number worth comparing between jewellers, and only when the stone grade is the same.

The table holds the specification visible so you can see why the numbers differ. Every price is AUD and includes GST, as all displayed Australian prices must. Other retailers' prices were checked on 12 July 2026, and ours is the current price of the 2 carat Isabella. None of the rows below were marked as sale prices on the day we checked; treat any strike-through "was" price you meet elsewhere with suspicion until you can see the stone grade.

Three notes on that table. The retailer "from" prices reference their cheapest metal and setting, and the stone behind a from-price is not always disclosed as clearly as it should be. The mined rows show how steeply natural prices climb with colour: a J colour 2ct round is $8,201 live, while published guides put an H colour VS2 at $19,000 to $25,000, and neither is the same stone as an E-F VVS1 lab-grown. And loose entry prices like the $1,423 round are real, but they are H colour, and at 2 carats a lower colour is visible in a way it is not at 1 carat.

Because "2 carat" fixes only the weight, and everything else that sets the price is still in play. Four things explain almost every gap you will see between quotes:

• Colour and clarity. The jump from H VS1 to E-F VVS1 in a 2ct lab stone is roughly $1,100 to $1,800 on current Australian pricing. Both are 2 carat diamonds. They are not the same product.
• Cut and depth. A stone cut deep to hold weight faces up smaller than its carat suggests, so it sells cheaper per carat. If a price looks too good, check the measurements against our 2 carat size table before assuming you found a bargain.
• Shape. Rounds cost the most per carat because cutting one wastes the most rough. Ovals and pears typically run 5 to 15% less at the same grade. Step cuts like the emerald price similarly to ovals but need higher clarity, because their long open facets hide nothing, which pushes the real cost back up.
• What the price includes. A loose-stone price is not a ring. A 9k white gold halo is not an 18k one; the same Temple & Grace design above moves from $5,270 to $6,752 when the metal changes. Compare complete rings in the same metal or you are comparing nothing.

Yes. Every ring in our 2 carat collection comes with a 2.00 to 2.09ct E to F VVS1 diamond, which keeps the price fixed. If you want a bigger stone, a different grade or a shape and setting pairing outside the collection, choose your diamond in our ring builder, where the price updates with the stone you pick, or send us an enquiry and we will price it from the live feed.

Every price displayed to Australian consumers must include GST, so ignore any mental 10% discount when comparing local prices with overseas sites, and remember imported rings over $1,000 attract GST plus processing at the border anyway. Beyond tax, ask any jeweller three questions before comparing totals: is the first resize included, does the ring ship with the stone's grading report, and do you get a valuation suitable for insurance. Those extras are worth a few hundred dollars and they differ between studios more than the headline prices do.

On price, it is not close. The mined rows in the table put a live J colour SI2 natural round at $8,201 loose and an H colour VS2 at $19,000 to $25,000 by published estimates, while an E-F VVS1 lab-grown, a visibly whiter and cleaner stone, sits in a complete ring from $4,250 in our collection. Both stones are crystallised carbon and grade on the same scales; the difference is origin and rarity, which we cover honestly in lab-grown vs natural diamonds. If holding long-term monetary value matters to you, mined keeps an edge. If the question is what sits on the hand, the lab-grown 2 carat is the same stone for a fifth of the money.

These are the prices two US retailers that ship to Australia showed an Australian visitor on 17 September 2026, for their cheapest round lab-grown diamond of 2.00 to 2.09 carats in D to F colour, VS1 clarity or better and an Ideal cut, in their plain 14k gold four-claw setting.

The totals are not like for like. Brilliant Earth shows its Australian prices with taxes included. Blue Nile converts its US dollar prices into Australian dollars and says in its international policy that duties, taxes and import fees are not included, so its ring would cost about $3,847 once 10% GST is added, plus a border processing charge and any customs duty. The two settings also differ in band width.

Buying from overseas also means shipping the ring back to the United States for a return, resize or repair. Our guide to buying from James Allen, Blue Nile or Brilliant Earth in Australia works through the full landed cost.

Our complete 2 carat rings cost $4,250 to $5,950 in 18k gold, with a 2.00 to 2.09ct E to F VVS1 diamond and an IGI report, and radiants and cushions are the most affordable shapes at this weight. Loose stones of that size on our feed mostly run $2,280 to $3,160, while the Australian retailers we checked in July priced complete rings between $3,920 and $6,752.

Browse our 2 carat collection to choose your ring, and check the 2 carat size guide to see what the weight looks like on the hand. If you are weighing up a carat more, the 3 carat price guide runs the same exercise at the next weight, where our complete rings start at $6,900.

Thanks for reading,
Jared and Brie