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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 36,636 current listings.

Updated October 29, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

36,636

Retailers carrying

53

Median confirmed price

£224

Grade combinations

27

Certificate mix:IGI 34,468 · GCAL 141 · GIA 21 · HRD 11

What it actually costs

Half of these diamonds are listed between £137 and £388 (as of October 29, 2026).

Lower 10% £117Median £224Upper 10% £493

Middle half listed between £137 to £388

Certificated stones with a recently confirmed price only, 3,075 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

430%

Typical difference

£656

Stones compared

2,128

Across 2,128 stones of this size and shape carried by more than one retailer, the dearest listing sits 430% above the cheapest for the identical certificated diamond, a typical gap of £656. 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 Carat2,238 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
  3. 3NZ Jewellers1,782 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
  5. 5Aurelinne1,620 in stock
    United States·Founded 2021·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Aurelinne
  8. 8

    The Perfect Carat

    1,474 in stock
    US
    Terms not yet verified
Show 15 more retailers
  1. 11Adiamor1,307 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  4. 14B2C Jewels1,073 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. 16Allurez927 in stock
    United States·Founded 2010·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Allurez
  9. 19Cape Diamonds764 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
  10. 20Yorxs763 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.

D VVS29,879 · 48rD VVS16,854 · 46rD VS16,664 · 47rE VVS22,854 · 48rE VS12,024 · 49rE VVS11,642 · 46rD VS21,219 · 43rD IF992 · 43rE VS2709 · 38rF VVS2652 · 44rF VS1600 · 41rD FL497 · 34rG VVS2284 · 29rF VS2242 · 31rG VS1225 · 30rE IF218 · 37rF VVS1211 · 42rH VS1199 · 26rG VS2167 · 26rH VS2151 · 19rH VVS2134 · 22rE FL56 · 28rI VS153 · 17rI VS246 · 17rF IF22 · 19rG VVS118 · 14rI VVS217 · 13r

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 2,128 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 430%, about £656.

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.

Where to Buy 0.75ct Lab Grown Marquise Diamonds | Carat Hunter