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Carat Hunter · Where to buy diamonds

Where to buy a 1.25ct lab-grown princess diamond

Every retailer in our index stocking this size and shape, 61 of them, across 27,975 current listings.

Updated November 6, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

27,975

Retailers carrying

61

Median confirmed price

£274

Grade combinations

36

Certificate mix:IGI 25,328 · GIA 1,513 · GCAL 354 · AGS 10 · HRD 9

What it actually costs

Half of these diamonds are listed between £170 and £691 (as of November 6, 2026).

Lower 10% £152Median £274Upper 10% £966

Middle half listed between £170 to £691

Certificated stones with a recently confirmed price only, 2,104 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

As of November 6, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 20% more for natural ones (the median across stones listed by two or more retailers). Comparing shows you the cheapest of the retailers listing the same stone.

Every retailer that stocks this spec

Ranked by active inventory count. Selection is mechanical, not editorial.

  1. 1Carbon Sparkle1,525 in stock
    United States·GCAL, GIA, GSI, HRD·21-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  2. 2Rare Carat1,524 in stock
    United States·Founded 2016·GCAL, GIA, IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  4. 4Aurelinne1,468 in stock
    United States·Founded 2021·GCAL, GIA, GSI, HRD·Ships to United Kingdom
    Terms not yet verified
    Visit Aurelinne
  5. 5

    The Perfect Carat

    1,374 in stock
    US·GCAL, GIA, GSI, HRD
    Terms not yet verified
  6. 6NZ Jewellers1,286 in stock
    New Zealand·Founded 2006·GCAL, GIA, GSI, HRD·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  10. 1077 Diamonds1,026 in stock
    United Kingdom·Founded 2005·GCAL, GIA, HRD, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit 77 Diamonds
Show 51 more retailers
  1. 11B2C Jewels1,023 in stock
    United States·Founded 2004·AGS, GIA, IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  7. 17Cape Diamonds780 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  10. 20Yorxs732 in stock
    Germany·Founded 2011·AGS, GIA, IGI
    Terms not yet verified
    Visit Yorxs
  15. 25Blue Nile355 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit Blue Nile
  19. 29Jared252 in stock
    United States·Founded 1993·GCAL, GIA, IGI
    Terms not yet verified
    Visit Jared
  21. 31Zales248 in stock
    United States·Founded 1924·GCAL, GIA, IGI
    Terms not yet verified
    Visit Zales
  26. 36RockHer166 in stock
    United States·Founded 2016·GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit RockHer
  30. 40Allurez112 in stock
    United States·Founded 2010·IGI·Ships to United Kingdom
    Terms not yet verified
    Visit Allurez
  33. 43GemsNY43 in stock
    United States·Founded 1988·GCAL, GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit GemsNY
  35. 45VRAI37 in stock
    United States·Founded 2014·IGI·Ships to United Kingdom
    Terms not yet verified
    Visit VRAI
  41. 5125karats13 in stock
    United States·Founded 2008·IGI·60-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, June 15, 2026
    Visit 25karats
  45. 55ZCOVA6 in stock
    Malaysia·Founded 2015·IGI·Ships to United Kingdom
    Terms not yet verified
    Visit ZCOVA
  49. 59

    Lauren B

    1 in stock
    US
    Terms not yet verified
  51. 61

    Whiteflash

    1 in stock
    US·IGI
    Terms not yet verified

Stock counts reflect current listings. 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.

37 of the 58 retailers with shipping details ship to United Kingdom. 21 do not. 3 retailers have not published any shipping details.

Narrow it down by grade

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

D VVS25,884 · 55rE VVS24,339 · 52rD VS13,951 · 53rE VS13,847 · 53rD VVS12,190 · 50rE VVS11,500 · 49rF VS11,080 · 45rF VVS21,076 · 48rE VS2614 · 40rG VS1444 · 37rD IF441 · 46rD VS2350 · 40rD FL306 · 33rG VVS2270 · 36rE IF251 · 31rF VS2251 · 35rF VVS1235 · 41rH VVS2146 · 29rG VS2103 · 27rE SI199 · 26rH VS197 · 23rF IF93 · 37rE FL62 · 26rH VS244 · 15rG VVS143 · 23rF SI135 · 23rF FL27 · 21rG FL26 · 20rD SI124 · 21rG IF21 · 20rG SI221 · 17rI VS120 · 20rJ VS119 · 16rI SI113 · 13rG SI112 · 9rI SI211 · 11r

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

  • Princess: a square brilliant cut, second only to round in popularity.
  • 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?

As of November 6, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 20% more for natural ones (the median across stones listed by two or more retailers). Comparing shows you the cheapest of the retailers listing the same stone.

Can I see retailers for one exact grade?

Yes. Each of the 36 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.