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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 301,126 current listings.

Updated November 3, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

301,126

Retailers carrying

64

Median confirmed price

£326

Grade combinations

29

Certificate mix:IGI 290,553 · GIA 1,610 · GCAL 1,428 · HRD 11

What it actually costs

Half of these diamonds are listed between £295 and £612 (as of November 3, 2026).

Lower 10% £273Median £326Upper 10% £1,357

Middle half listed between £295 to £612

Certificated stones with a recently confirmed price only, 36,622 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

238%

Typical difference

£875

Stones compared

29,595

Across 29,595 stones of this size and shape carried by more than one retailer, the dearest listing sits 238% above the cheapest for the identical certificated diamond, a typical gap of £875. 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 Carat15,275 in stock
    United States·Founded 2016·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  6. 6Brilliance11,600 in stock
    United States·Founded 2002·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Brilliance
  8. 8NZ Jewellers11,054 in stock
    New Zealand·Founded 2006·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  10. 10Adiamor10,119 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
Show 15 more retailers
  2. 12

    The Perfect Carat

    9,492 in stock
    US
    Terms not yet verified
  4. 14B2C Jewels9,410 in stock
    United States·Founded 2004·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  6. 16Aurelinne9,112 in stock
    United States·Founded 2021·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Aurelinne
  7. 17Moon Ocean7,295 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Moon Ocean
  8. 18RockHer7,123 in stock
    United States·Founded 2016·40-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit RockHer
  10. 20Cape Diamonds6,290 in stock
    South Africa·Founded 2005·7-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  12. 22Yorxs5,470 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 United Kingdom. 9 do not.

Narrow it down by grade

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

E VVS261,074 · 59rE VS144,094 · 56rD VVS232,794 · 58rF VVS229,796 · 57rF VS120,690 · 48rD VVS120,312 · 55rE VVS117,961 · 51rD VS115,685 · 55rE VS210,974 · 47rD IF9,149 · 47rD FL9,041 · 40rF VVS15,710 · 46rF VS25,172 · 44rG VVS25,069 · 41rD VS24,047 · 42rG VS13,600 · 47rE IF2,051 · 40rG VS2821 · 33rG VVS1813 · 40rE FL615 · 37rF IF486 · 36rH VVS2429 · 35rH VS1389 · 32rH VS2129 · 27rG IF78 · 30rH VVS156 · 8rF FL39 · 26rI VS130 · 18rI VVS219 · 17r

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 29,595 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 238%, about £875.

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.