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Carat Hunter · Where to buy diamonds

Where to buy a 1.25ct lab-grown cushion diamond

Every retailer in our index stocking this size and shape, 61 of them, across 22,259 current listings.

Updated October 31, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

22,259

Retailers carrying

61

Median confirmed price

€336

Grade combinations

28

Certificate mix:IGI 20,387 · GIA 1,073 · GCAL 232 · HRD 18

What it actually costs

Half of these diamonds are listed between €228 and €610 (as of October 31, 2026).

Lower 10% €197Median €336Upper 10% €1,303

Middle half listed between €228 to €610

Certificated stones with a recently confirmed price only, 2,912 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

384%

Typical difference

€1,069

Stones compared

2,229

Across 2,229 stones of this size and shape carried by more than one retailer, the dearest listing sits 384% above the cheapest for the identical certificated diamond, a typical gap of €1,069. 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 Carat1,442 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
  5. 5B2C Jewels1,142 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. 7Adiamor1,072 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  8. 8Moon Ocean1,067 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to European Union
    Terms not yet verified
    Visit Moon Ocean
Show 15 more retailers
  3. 13Yorxs699 in stock
    Germany·Founded 2011·100-day returns·Ships to European Union
    Terms not yet verified
    Visit Yorxs
  4. 14Cape Diamonds695 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
  14. 24Allurez278 in stock
    United States·Founded 2010·30-day returns·Ships to European Union
    Terms not yet verified
    Visit Allurez
  15. 25RockHer264 in stock
    United States·Founded 2016·40-day returns·Ships to European Union
    Terms not yet verified
    Visit RockHer

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 VVS24,463 · 52rD VS13,224 · 50rE VVS22,914 · 53rE VS12,582 · 50rD VVS12,351 · 49rF VS1951 · 43rE VVS1931 · 47rE VS2712 · 43rF VVS2675 · 43rD VS2621 · 43rG VVS2472 · 35rD IF465 · 39rD FL388 · 37rF VS2309 · 37rG VS1281 · 33rE IF195 · 33rF IF155 · 35rG VS2120 · 33rE FL104 · 21rF VVS184 · 30rH VS168 · 24rH VVS251 · 17rG VVS142 · 16rH VS234 · 13rH VVS121 · 4rI VVS214 · 13rF FL13 · 13rI VS213 · 10r

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 2,229 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 384%, about €1,069.

Can I see retailers for one exact grade?

Yes. Each of the 28 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.