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Carat Hunter · Where to buy diamonds

Where to buy a 0.75ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 53 of them, across 35,159 current listings.

Updated November 4, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

35,159

Retailers carrying

53

Median confirmed price

£223

Grade combinations

27

Certificate mix:IGI 33,667 · GCAL 138 · GIA 21 · HRD 11

What it actually costs

Half of these diamonds are listed between £143 and £387 (as of November 4, 2026).

Lower 10% £121Median £223Upper 10% £492

Middle half listed between £143 to £387

Certificated stones with a recently confirmed price only, 3,056 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

365%

Typical difference

£621

Stones compared

2,100

Across 2,100 stones of this size and shape carried by more than one retailer, the dearest listing sits 365% above the cheapest for the identical certificated diamond, a typical gap of £621. 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.

  1. 1Rare Carat2,246 in stock
    United States·Founded 2016·30-day returns·Ships to Ireland
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  3. 3NZ Jewellers1,824 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Ireland
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  5. 5Aurelinne1,639 in stock
    United States·Founded 2021·30-day returns·Ships to Ireland
    Terms not yet verified
    Visit Aurelinne
  7. 7

    The Perfect Carat

    1,515 in stock
    US
    Terms not yet verified
  10. 10Adiamor1,262 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
Show 15 more retailers
  2. 12B2C Jewels1,077 in stock
    United States·Founded 2004·30-day returns·Ships to Ireland
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  11. 21Yorxs689 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  15. 25Blue Nile563 in stock
    United States·Founded 1999·30-day returns·Ships to Ireland
    Terms not yet verified
    Visit Blue Nile

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.

14 of the 25 retailers ship to Ireland. 11 do not.

Narrow it down by grade

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

D VVS29,088 · 48rD VVS16,819 · 46rD VS16,293 · 47rE VVS22,713 · 48rE VS11,921 · 49rE VVS11,709 · 46rD VS21,154 · 43rD IF1,024 · 43rE VS2677 · 37rF VVS2629 · 43rF VS1605 · 41rD FL493 · 34rG VVS2275 · 29rF VS2249 · 31rG VS1223 · 31rF VVS1217 · 42rE IF213 · 37rH VS1199 · 26rG VS2167 · 25rH VS2152 · 19rH VVS2130 · 22rE FL56 · 28rI VS154 · 18rI VS243 · 15rF IF17 · 15rI VVS217 · 13rG VVS115 · 12r

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 2,100 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 365%, about £621.

Can I see retailers for one exact grade?

Yes. Each of the 27 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.