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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 20,836 current listings.

Updated November 1, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

20,836

Retailers carrying

49

Median confirmed price

£210

Grade combinations

23

Certificate mix:IGI 19,735 · GCAL 127 · GIA 25 · HRD 1

What it actually costs

Half of these diamonds are listed between £164 and £348 (as of November 1, 2026).

Lower 10% £134Median £210Upper 10% £552

Middle half listed between £164 to £348

Certificated stones with a recently confirmed price only, 2,492 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

378%

Typical difference

£704

Stones compared

2,020

Across 2,020 stones of this size and shape carried by more than one retailer, the dearest listing sits 378% above the cheapest for the identical certificated diamond, a typical gap of £704. 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 Jewels1,210 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. 7Adiamor1,046 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  9. 9Yorxs733 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
Show 15 more retailers
  2. 12Allurez666 in stock
    United States·Founded 2010·30-day returns·Ships to Ireland
    Terms not yet verified
    Visit Allurez
  9. 19GemsNY410 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 VVS25,000 · 46rD VS12,847 · 44rE VS12,453 · 42rD VVS12,321 · 40rE VVS22,206 · 41rF VS1888 · 40rE VS2757 · 37rD VS2748 · 38rD IF688 · 33rE VVS1676 · 39rF VVS2531 · 40rG VS1355 · 34rF VS2327 · 36rG VVS2249 · 38rE IF176 · 35rD FL171 · 25rG VS2126 · 21rF VVS190 · 34rF IF72 · 29rI VS165 · 19rH VS143 · 21rG VVS118 · 14rH VVS218 · 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

  • 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 2,020 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 378%, about £704.

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.