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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, 62 of them, across 21,847 current listings.

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

The market at this size and shape

Active listings

21,847

Retailers carrying

62

Median confirmed price

CA$541

Grade combinations

28

Certificate mix:IGI 19,985 · GIA 1,073 · GCAL 230 · HRD 17

What it actually costs

Half of these diamonds are listed between CA$358 and CA$972 (as of October 29, 2026).

Lower 10% CA$305Median CA$541Upper 10% CA$2,044

Middle half listed between CA$358 to CA$972

Certificated stones with a recently confirmed price only, 2,897 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

388%

Typical difference

CA$1,658

Stones compared

2,188

Across 2,188 stones of this size and shape carried by more than one retailer, the dearest listing sits 388% above the cheapest for the identical certificated diamond, a typical gap of CA$1,658. 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 Carat1,442 in stock
    United States·Founded 2016·30-day returns·Ships to Canada
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  6. 6B2C Jewels1,080 in stock
    United States·Founded 2004·30-day returns·Ships to Canada
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  9. 9Adiamor1,041 in stock
    United States·Founded 1999·30-day returns·Ships to Canada
    Terms not yet verified
    Visit Adiamor
Show 15 more retailers
  4. 14Yorxs662 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  14. 24Allurez278 in stock
    United States·Founded 2010·30-day returns·Ships to Canada
    Terms not yet verified
    Visit Allurez
  15. 25RockHer259 in stock
    United States·Founded 2016·40-day returns·Ships to Canada
    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.

18 of the 25 retailers ship to Canada. 7 do not.

Narrow it down by grade

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

D VVS24,330 · 52rD VS13,179 · 49rE VVS22,834 · 53rE VS12,531 · 50rD VVS12,354 · 48rF VS1932 · 43rE VVS1906 · 47rE VS2714 · 42rF VVS2651 · 43rD VS2624 · 42rG VVS2479 · 35rD IF458 · 39rD FL384 · 37rF VS2310 · 37rG VS1278 · 33rE IF186 · 33rF IF153 · 35rG VS2122 · 34rF VVS184 · 30rE FL73 · 20rH VS168 · 24rH VVS252 · 18rG VVS142 · 16rH VS235 · 14rH VVS121 · 4rI VS214 · 11rI VVS214 · 13rF FL13 · 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

  • 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 2,188 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 388%, about CA$1,658.

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.