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Carat Hunter · Where to buy diamonds

Where to buy a 2ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 64 of them, across 285,146 current listings.

Updated October 31, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

285,146

Retailers carrying

64

Median confirmed price

A$648

Grade combinations

29

Certificate mix:IGI 275,166 · GIA 1,601 · GCAL 1,422 · HRD 11

What it actually costs

Half of these diamonds are listed between A$567 and A$1,176 (as of October 31, 2026).

Lower 10% A$525Median A$648Upper 10% A$2,586

Middle half listed between A$567 to A$1,176

Certificated stones with a recently confirmed price only, 36,934 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

240%

Typical difference

A$1,668

Stones compared

29,026

Across 29,026 stones of this size and shape carried by more than one retailer, the dearest listing sits 240% above the cheapest for the identical certificated diamond, a typical gap of A$1,668. That gap is what comparing before you buy avoids.

Every retailer that stocks this spec

Ranked by active inventory count. Selection is mechanical, not editorial.

  4. 4Rare Carat15,312 in stock
    United States·Founded 2016·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  8. 8NZ Jewellers9,798 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  9. 9Adiamor9,669 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
Show 15 more retailers
  1. 11B2C Jewels9,253 in stock
    United States·Founded 2004·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  4. 14Aurelinne8,442 in stock
    United States·Founded 2021·30-day returns·Ships to Australia
    Terms not yet verified
    Visit Aurelinne
  6. 16

    The Perfect Carat

    7,539 in stock
    US
    Terms not yet verified
  8. 18RockHer6,792 in stock
    United States·Founded 2016·40-day returns·Ships to Australia
    Terms not yet verified
    Visit RockHer
  10. 20Cape Diamonds6,011 in stock
    South Africa·Founded 2005·7-day returns·Ships to Australia
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  12. 22Yorxs5,592 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs

Stock counts are updated daily. Founded and shipping details come from public sources. Return terms are our summary of each retailer's own policy page, dated per retailer above. Retailers change their terms, so check the retailer's own returns and shipping pages before you buy.

16 of the 25 retailers ship to Australia. 9 do not.

Narrow it down by grade

Each combination below has its own page with the retailers that stock exactly that grade.

E VVS257,541 · 59rE VS140,292 · 56rD VVS230,009 · 58rF VVS228,581 · 57rF VS120,211 · 48rD VVS119,315 · 55rE VVS116,956 · 53rD VS114,649 · 55rE VS210,773 · 49rD IF9,090 · 46rD FL8,966 · 41rF VVS15,313 · 46rF VS25,232 · 44rG VVS24,846 · 43rD VS23,907 · 42rG VS13,553 · 47rE IF2,036 · 40rG VS2819 · 33rG VVS1790 · 39rE FL615 · 37rF IF463 · 36rH VVS2421 · 35rH VS1407 · 32rH VS2135 · 28rG IF77 · 30rH VVS156 · 8rF FL39 · 26rI VS131 · 18rI VVS220 · 18r

Stones at this spec now

Current examples carried by more than one retailer, so the comparison is real. Prices shown in USD.

What this spec means

  • Marquise: a pointed-end ellipse that faces up large for its carat.
  • Lab-grown: chemically identical to natural diamonds, typically at least 90% less than a comparable natural cohort from 1 carat up.

Frequently asked

How much do retailers differ on the same diamond?

Across 29,026 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 240%, about A$1,668.

Can I see retailers for one exact grade?

Yes. Each of the 29 colour and clarity combinations above has its own page listing the retailers that stock exactly that grade.

Does Carat Hunter earn commission from these retailers?

No. We earn zero affiliate revenue from any retailer in our index.

How fresh is this data?

Listings refresh as we re-read each retailer, most of them every day. Static facts about each retailer refresh weekly.

How is the retailer ranking calculated?

Strictly by active inventory count for this exact spec. The retailer carrying the most stones at the spec ranks first. There is no editorial input, weighting or affiliate consideration.

Why do you not show per-retailer prices on this page?

Prices vary per stone, not per store. Click through to any matched diamond and you will see every retailer's price on the exact same physical stone, which is the meaningful comparison.

Where to Buy 2ct Lab Grown Marquise Diamonds | Carat Hunter