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Carat Hunter · Where to buy diamonds

Where to buy a 1ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 62 of them, across 178,225 current listings.

Updated November 2, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

178,225

Retailers carrying

62

Median confirmed price

€265

Grade combinations

30

Certificate mix:IGI 171,235 · GCAL 852 · GIA 636 · HRD 22

What it actually costs

Half of these diamonds are listed between €184 and €439 (as of November 2, 2026).

Lower 10% €168Median €265Upper 10% €722

Middle half listed between €184 to €439

Certificated stones with a recently confirmed price only, 15,432 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

322%

Typical difference

€761

Stones compared

12,021

Across 12,021 stones of this size and shape carried by more than one retailer, the dearest listing sits 322% above the cheapest for the identical certificated diamond, a typical gap of €761. 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.

  2. 2Rare Carat10,099 in stock
    United States·Founded 2016·30-day returns·Ships to European Union
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  4. 4NZ Jewellers8,584 in stock
    New Zealand·Founded 2006·30-day returns·Ships to European Union
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  8. 8Aurelinne7,584 in stock
    United States·Founded 2021·30-day returns·Ships to European Union
    Terms not yet verified
    Visit Aurelinne
  9. 9

    The Perfect Carat

    7,015 in stock
    US
    Terms not yet verified
  10. 10Adiamor6,950 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
Show 15 more retailers
  2. 12B2C Jewels6,842 in stock
    United States·Founded 2004·30-day returns·Ships to European Union
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  7. 17Yorxs4,655 in stock
    Germany·Founded 2011·100-day returns·Ships to European Union
    Terms not yet verified
    Visit Yorxs
  8. 18Cape Diamonds4,362 in stock
    South Africa·Founded 2005·7-day returns·Ships to European Union
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  10. 20Moon Ocean4,038 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to European Union
    Terms not yet verified
    Visit Moon Ocean

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.

15 of the 25 retailers ship to European Union. 10 do not.

Narrow it down by grade

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

D VVS230,215 · 54rE VVS224,429 · 54rD VVS119,295 · 55rE VS116,739 · 54rD VS115,864 · 53rD IF13,344 · 50rD FL12,995 · 39rE VVS111,148 · 54rF VVS27,165 · 54rE VS25,236 · 46rF VS15,070 · 53rD VS23,611 · 46rE IF2,614 · 50rG VS12,128 · 39rG VVS21,982 · 42rF VVS11,959 · 46rF VS21,315 · 40rG VS2712 · 32rH VS1711 · 34rE FL440 · 36rH VVS2372 · 31rH VS2203 · 27rG VVS1175 · 38rF IF171 · 39rI VS1159 · 19rI VS268 · 18rH VVS140 · 20rI VVS225 · 17rF FL20 · 16rI VVS116 · 16r

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 12,021 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 322%, about €761.

Can I see retailers for one exact grade?

Yes. Each of the 30 color 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.