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Carat Hunter · Where to buy diamonds

Where to buy a 0.75ct lab-grown cushion diamond

Every retailer in our index stocking this size and shape, 49 of them, across 20,686 current listings.

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

The market at this size and shape

Active listings

20,686

Retailers carrying

49

Median confirmed price

£211

Grade combinations

23

Certificate mix:IGI 19,606 · GCAL 119 · GIA 25 · HRD 1

What it actually costs

Half of these diamonds are listed between £166 and £351 (as of October 29, 2026).

Lower 10% £130Median £211Upper 10% £564

Middle half listed between £166 to £351

Certificated stones with a recently confirmed price only, 2,461 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

369%

Typical difference

£692

Stones compared

1,996

Across 1,996 stones of this size and shape carried by more than one retailer, the dearest listing sits 369% above the cheapest for the identical certificated diamond, a typical gap of £692. 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.

  3. 3Rare Carat1,234 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
  4. 4B2C Jewels1,157 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
  7. 7Adiamor1,036 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  9. 9Yorxs741 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
Show 15 more retailers
  1. 11Allurez666 in stock
    United States·Founded 2010·30-day returns·Ships to Ireland
    Terms not yet verified
    Visit Allurez
  10. 20GemsNY393 in stock
    United States·Founded 1988·30-day returns·Ships to Ireland
    Terms not yet verified
    Visit GemsNY

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.

12 of the 25 retailers ship to Ireland. 13 do not.

Narrow it down by grade

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

D VVS24,929 · 46rD VS12,794 · 44rE VS12,446 · 39rD VVS12,320 · 40rE VVS22,210 · 41rF VS1868 · 37rE VS2758 · 37rD VS2744 · 38rD IF687 · 33rE VVS1683 · 39rF VVS2516 · 40rG VS1357 · 34rF VS2329 · 36rG VVS2251 · 38rE IF176 · 35rD FL171 · 25rG VS2126 · 21rF VVS190 · 34rF IF71 · 29rI VS166 · 19rH VS143 · 21rG VVS120 · 15rH VVS220 · 14r

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

  • Cushion: a softened-corner square or rectangle with a vintage feel.
  • 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 1,996 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 369%, about £692.

Can I see retailers for one exact grade?

Yes. Each of the 23 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.