CaratHunter
Plans

Carat Hunter · Where to buy diamonds

Where to buy a 1.25ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 70 of them, across 39,586 current listings.

Updated November 7, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

39,586

Retailers carrying

70

Median confirmed price

£340

Grade combinations

29

Certificate mix:IGI 37,381 · GIA 516 · GCAL 458 · HRD 1

What it actually costs

Half of these diamonds are listed between £213 and £575 (as of November 7, 2026).

Lower 10% £165Median £340Upper 10% £924

Middle half listed between £213 to £575

Certificated stones with a recently confirmed price only, 3,242 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

As of November 7, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 21% 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. 1Rare Carat2,852 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
  5. 5Carbon Sparkle1,730 in stock
    United States·GCAL, GIA, IGI·21-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  6. 6NZ Jewellers1,730 in stock
    New Zealand·Founded 2006·GCAL, GIA, IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  8. 8Adiamor1,645 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
  9. 9

    The Perfect Carat

    1,570 in stock
    US·GCAL, GIA, IGI
    Terms not yet verified
Show 60 more retailers
  1. 11Aurelinne1,505 in stock
    United States·Founded 2021·GCAL, GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit Aurelinne
  2. 12B2C Jewels1,385 in stock
    United States·Founded 2004·GIA, IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  6. 16Cape Diamonds1,098 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
  7. 17Yorxs1,085 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  12. 22

    Steven Stone

    801 in stock
    UK·GCAL, GIA, IGI·Ships to United Kingdom
    Terms not yet verified
  18. 28

    Luvansh

    585 in stock
    US
    Terms not yet verified
  19. 29

    deBebians

    497 in stock
    US·GCAL, IGI
    Terms not yet verified
  21. 31

    GemTrove

    440 in stock
    AU·GCAL, GIA, IGI
    Terms not yet verified
  23. 33Blue Nile405 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit Blue Nile
  27. 37RockHer355 in stock
    United States·Founded 2016·GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit RockHer
  28. 38

    SJ Gems

    287 in stock
    ZA·GIA, IGI
    Terms not yet verified
  29. 39GemsNY246 in stock
    United States·Founded 1988·GCAL, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit GemsNY
  31. 41Jared221 in stock
    United States·Founded 1993·GCAL, GIA, IGI
    Terms not yet verified
    Visit Jared
  33. 43Zales219 in stock
    United States·Founded 1924·GCAL, GIA, IGI
    Terms not yet verified
    Visit Zales
  37. 47

    Reeds

    114 in stock
    US·GCAL, IGI
    Terms not yet verified
  39. 49

    Keyzar

    82 in stock
    US·IGI
    Terms not yet verified
  41. 51Allurez75 in stock
    United States·Founded 2010·Ships to United Kingdom
    Terms not yet verified
    Visit Allurez
  46. 56ZCOVA25 in stock
    Malaysia·Founded 2015·IGI·Ships to United Kingdom
    Terms not yet verified
    Visit ZCOVA
  47. 57

    Liori Diamonds

    22 in stock
    US·IGI
    Terms not yet verified
  48. 58

    USA Jewels

    21 in stock
    US·IGI
    Terms not yet verified
  51. 61VRAI14 in stock
    United States·Founded 2014·IGI·Ships to United Kingdom
    Terms not yet verified
    Visit VRAI
  53. 6325karats9 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
  56. 66

    Whiteflash

    6 in stock
    US·IGI
    Terms not yet verified
  58. 68

    Laura Preshong

    2 in stock
    US·GCAL
    Terms not yet verified
  60. 70

    Lauren B

    1 in stock
    US
    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.

36 of the 58 retailers with shipping details ship to United Kingdom. 22 do not. 12 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.

E VVS25,560 · 59rD VVS25,252 · 59rD VVS15,081 · 52rD IF4,616 · 50rD FL3,854 · 42rE VS13,417 · 56rD VS13,260 · 58rF VVS21,895 · 55rE VVS11,886 · 55rF VS11,058 · 52rE VS2809 · 43rF VVS1451 · 46rD VS2422 · 44rE IF391 · 40rG VS1363 · 33rF VS2320 · 36rG VVS2237 · 33rE FL227 · 35rG VVS169 · 23rE SI168 · 23rG VS266 · 23rH VS165 · 11rF IF41 · 26rH VS237 · 8rD SI134 · 18rH VVS233 · 6rH VVS127 · 3rG SI113 · 7rF SI111 · 3r

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

  • Marquise: a pointed-end ellipse that faces up large for its carat.
  • 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 7, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 21% 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 29 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.