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Buying guide

Exploring buying guide through our expert insights and perspectives.

37 insights found

Model wearing a pear lab-grown diamond engagement ring with a curved pavé wedding band below the title "Wedding Band for a Pear Engagement Ring: Which Style Sits Best", by Lily Dia Jewellery

Wedding Band for a Pear Engagement Ring: Which Style Sits Best

A curved band that follows the pear sits closest, and a straight band works when the pear is set high enough for the band to slide underneath. The side you wear the band on matters too, because below the ring it meets the rounded end of the stone and above the ring it meets the point.

Pear diamond engagement ring in yellow gold on a white calla lily below the title "1 Carat Lab Grown Diamond Price Chart", by Lily Dia Jewellery

1 Carat Lab Grown Diamond Price Chart

Charts of 1 carat lab-grown diamond prices in Australia by shape, clarity, colour and carat weight, from 527 live stones. Median $1,271, most between $1,122 and $1,602, checked 17 September 2026.

Princess cut lab-grown diamond solitaire engagement ring in yellow gold below the title "How Much Is a 2 Carat Princess Cut Lab Grown Diamond?", by Lily Dia Jewellery

How Much Is a 2 Carat Princess Cut Lab Grown Diamond?

A 2 carat princess cut lab-grown diamond costs about $2,310 to $5,070 loose in Australia, and a complete 2 carat princess cut engagement ring costs $4,650 to $5,200. Prices by carat and clarity from our live feed, checked 17 September 2026.

Pear diamond solitaire engagement ring on a hand against burgundy below the title "How Much Is a 2 Carat Pear Shaped Lab Grown Diamond?", by Lily Dia Jewellery

How Much Is a 2 Carat Pear Shaped Lab Grown Diamond?

A 2 carat pear shaped lab-grown diamond costs about $2,450 to $3,550 loose in Australia, and a complete 2 carat pear engagement ring costs $5,000 to $5,950. Prices by carat, clarity and outline from our live feed, checked 17 September 2026.

Radiant cut lab-grown diamond solitaire engagement ring in yellow gold below the title "How Much Is a 2 Carat Lab Grown Radiant Cut Diamond?", by Lily Dia Jewellery

How Much Is a 2 Carat Lab Grown Radiant Cut Diamond?

A 2 carat lab-grown radiant cut diamond costs about $2,380 to $2,890 loose in Australia, and a complete 2 carat radiant engagement ring costs $4,250 to $5,200. Prices by carat, clarity and outline from our live feed, checked 17 September 2026.

Cushion cut lab-grown diamond solitaire engagement ring in yellow gold below the title "How Much Is a 2 Carat Lab Grown Cushion Cut Diamond?", by Lily Dia Jewellery

How Much Is a 2 Carat Lab Grown Cushion Cut Diamond?

A 2 carat lab-grown cushion cut diamond costs about $2,310 to $4,210 loose in Australia, and a complete 2 carat cushion engagement ring costs $4,350 to $5,500. Square and elongated cushion prices from our live feed, checked 17 September 2026.

Oval diamond solitaire engagement ring on a hand below the title "How Much Does a 2 Carat Oval Lab Grown Diamond Cost?", by Lily Dia Jewellery

How Much Does a 2 Carat Oval Lab Grown Diamond Cost?

A 2 carat oval lab-grown diamond costs about $2,250 to $2,960 loose in Australia, and a complete 2 carat oval engagement ring costs $4,500 to $5,650. Prices by carat, clarity and shape from our live feed, checked 17 September 2026.

Round brilliant lab-grown diamond solitaire engagement ring in yellow gold below the title "How Much Does a 2 Carat Lab Grown Round Cut Diamond Cost?", by Lily Dia Jewellery

How Much Does a 2 Carat Lab Grown Round Cut Diamond Cost?

A 2 carat lab-grown round diamond costs $2,293 to $3,331 as a loose stone in Australia, and a complete 2 carat round engagement ring costs $4,750 to $5,550. Prices by carat weight and clarity from 704 live round stones, checked 17 September 2026.

Marquise lab-grown diamond solitaire engagement ring in yellow gold below the title "How Much Does a 2 Carat Lab Grown Marquise Diamond Cost?", by Lily Dia Jewellery

How Much Does a 2 Carat Lab Grown Marquise Diamond Cost?

A 2 carat lab-grown marquise diamond costs about $2,260 to $5,130 loose in Australia, and a complete 2 carat marquise engagement ring costs $5,350 to $6,100. Why the spread is so wide, from our live feed, checked 17 September 2026.

Emerald cut diamond solitaire engagement ring on a hand below the title "How Much Does a 2 Carat Emerald Cut Lab Grown Diamond Cost?", by Lily Dia Jewellery

How Much Does a 2 Carat Emerald Cut Lab Grown Diamond Cost?

A 2 carat emerald cut lab-grown diamond costs about $2,360 to $3,050 loose in Australia, and a complete 2 carat emerald cut engagement ring costs $4,600 to $5,750. Prices by carat and clarity from our live feed, checked 17 September 2026.

Pear shaped lab-grown diamond solitaire engagement ring in yellow gold below the title "3 Carat Pear Shape Lab Grown Diamond Price", by Lily Dia Jewellery

3 Carat Pear Shape Lab Grown Diamond Price

A 3 carat pear shaped lab-grown diamond costs about $2,810 to $7,740 loose in Australia, and a complete 3 carat pear engagement ring costs $8,750 to $9,700. Why top clarity doubles the price, from our live feed, checked 17 September 2026.

Oval lab-grown diamond solitaire engagement ring in yellow gold below the title "3 Carat Oval Lab Grown Diamond Price", by Lily Dia Jewellery

3 Carat Oval Lab Grown Diamond Price

A 3 carat oval lab-grown diamond costs about $2,830 to $6,440 loose in Australia, and a complete 3 carat oval engagement ring costs $6,900 to $8,050. Prices by carat and clarity from our live feed, checked 17 September 2026.

Emerald cut lab-grown diamond solitaire engagement ring in yellow gold below the title "3 Carat Emerald Cut Lab Grown Diamond Price", by Lily Dia Jewellery

3 Carat Emerald Cut Lab Grown Diamond Price

A 3 carat emerald cut lab-grown diamond costs about $2,510 to $5,550 loose in Australia, and a complete 3 carat emerald cut engagement ring costs $6,900 to $8,050. Prices by carat and clarity from our live feed, checked 17 September 2026.

Model wearing a round brilliant lab-grown diamond engagement ring below the title "1 Carat Lab Diamond Ring Price in Australia", by Lily Dia Jewellery

1 Carat Lab Diamond Ring Price in Australia

Our complete 1 carat lab-grown diamond engagement rings cost $2,950 to $4,350 in 18k gold, with a 1.00 to 1.09ct E to F VVS1 diamond and an IGI report. Loose, mined and overseas 1ct prices are compared below.

Man's hand wearing a plain gold wedding band below the title "Who Buys the Man's Wedding Ring?", by Lily Dia Jewellery

Who Buys the Man's Wedding Ring?

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.

Model wearing an oval lab-grown diamond engagement ring below the title "2 Carat Lab Diamond Ring Price in Australia", by Lily Dia Jewellery

2 Carat Lab Diamond Ring Price in Australia

Our complete 2 carat lab-grown diamond engagement 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. Loose, mined and overseas 2ct prices are compared below.

Model wearing a radiant cut lab-grown diamond engagement ring in a bezel setting below the title "3 Carat Lab Diamond Ring Price in Australia", by Lily Dia Jewellery

3 Carat Lab Diamond Ring Price in Australia

A complete 3 carat lab-grown diamond engagement ring costs roughly $4,700 to $9,000 at Australian jewellers, and a high-grade loose 3ct stone about $3,300 to $7,100. Like-for-like, loose, mined and overseas 3ct prices are compared below, with the full specification behind each one.

Round halo engagement rings in four sizes on one hand below the title "How Big Is a 1 Carat Diamond? Size in mm", by Lily Dia Jewellery

How Big Is a 1 Carat Diamond? Size in mm

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.

Couple embracing, her hand wearing a diamond engagement ring below the title "How to Propose Without Getting the Wrong Ring", by Lily Dia Jewellery

How to Propose Without Getting the Wrong Ring

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.

Hand wearing an oval diamond solitaire engagement ring below the title "How Tight Should a Ring Be? Too Tight or Too Loose", by Lily Dia Jewellery

How Tight Should a Ring Be? Too Tight or Too Loose

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.

Round diamond solitaire on a hand holding a coupe glass below the title "What Is the 3 Month Salary Rule for Engagement Rings?", by Lily Dia Jewellery

What Is the 3 Month Salary Rule for Engagement Rings?

Ignore it. The 3 month salary rule came from De Beers advertising, not tradition. On average Australian full-time earnings it would mean about $27,000, while couples spent an average of $6,842 on an engagement ring in the 2026 Easy Weddings survey, about a quarter of that.

Oval diamond double halo engagement ring in yellow gold on a hand below the title "How Big Is a 2 Carat Diamond? Size in mm and On a Hand", by Lily Dia Jewellery

How Big Is a 2 Carat Diamond? Size in mm and On a Hand

Yes, 2 carats is big. A 2 carat round diamond is about 8.1mm across, about half the width of an average finger, and a 2 carat oval about 10.3mm long. Here is every shape in mm, measured on our own stones, 2 carats beside 1 and 3, and our 2 carat rings on a hand.

Solitaire engagement ring worn with a curved wedding band below the title "Can I Use My Engagement Ring as My Wedding Ring?", by Lily Dia Jewellery

Can I Use My Engagement Ring as My Wedding Ring?

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).

Woman in daylight wearing an oval diamond engagement ring below the title "Which Hand and Finger Do Engagement and Wedding Rings Go On?", by Lily Dia Jewellery

Which Hand and Finger Do Engagement and Wedding Rings Go On?

In Australia, the engagement ring and the wedding ring both go on the fourth finger of the left hand, with the wedding band first so it sits closest to the hand. Here it is on a hand, plus where the right hand is used, how to wear both rings together and how to size the right finger.

Woman at a café table wearing a diamond engagement ring below the title "When Should You Buy an Engagement Ring?", by Lily Dia Jewellery

When Should You Buy an Engagement Ring?

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.

Hand wearing a round diamond solitaire engagement ring below the title "Can You Resize an Engagement Ring?", by Lily Dia Jewellery

Can You Resize an Engagement Ring?

Most engagement rings can be resized two to three Australian 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.

Lily Dia ring pouch with an engagement ring and wedding band below the title "Engagement Ring Arrived Damaged or Wrong Size?", by Lily Dia Jewellery

Engagement Ring Arrived Damaged or Wrong Size?

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.

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