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Carat Hunter · Where to buy diamonds

Where to buy a 1.25ct lab-grown radiant diamond

Every retailer in our index stocking this size and shape, 60 of them, across 37,533 current listings.

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

The market at this size and shape

Active listings

37,533

Retailers carrying

60

Median confirmed price

$485

Grade combinations

34

Certificate mix:IGI 34,436 · GIA 1,669 · GCAL 490 · HRD 3

What it actually costs

Half of these diamonds are listed between $235 and $700 (as of November 6, 2026).

Lower 10% $200Median $485Upper 10% $1,025

Middle half listed between $235 to $700

Certificated stones with a recently confirmed price only, 4,363 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. 1NZ Jewellers2,482 in stock
    New Zealand·Founded 2006·GCAL, GIA, GSI, IGI·30-day returns·Ships to United States
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  2. 2Carbon Sparkle2,416 in stock
    United States·GCAL, GIA, GSI, IGI·21-day returns·Ships to United States
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  3. 3

    The Perfect Carat

    2,224 in stock
    US·GCAL, GIA, GSI, IGI·Ships to United States
    Terms not yet verified
  4. 4Rare Carat1,935 in stock
    United States·Founded 2016·GCAL, GIA, IGI·30-day returns·Ships to United States
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  5. 5Aurelinne1,900 in stock
    United States·Founded 2021·GCAL, GIA, GSI, IGI·Ships to United States
    Terms not yet verified
    Visit Aurelinne
  10. 10Adiamor1,360 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to United States
    Terms not yet verified
    Visit Adiamor
Show 50 more retailers
  6. 16B2C Jewels1,162 in stock
    United States·Founded 2004·GIA, IGI·30-day returns·Ships to United States
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  9. 19Cape Diamonds871 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to United States
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  11. 21Yorxs773 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  17. 27Blue Nile335 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to United States
    Terms not yet verified
    Visit Blue Nile
  20. 30RockHer220 in stock
    United States·Founded 2016·GIA, IGI·Ships to United States
    Terms not yet verified
    Visit RockHer
  21. 31Jared219 in stock
    United States·Founded 1993·GCAL, GIA, IGI·Ships to United States
    Terms not yet verified
    Visit Jared
  30. 40Allurez156 in stock
    United States·Founded 2010·IGI·Ships to United States
    Terms not yet verified
    Visit Allurez
  31. 41Zales145 in stock
    United States·Founded 1924·GCAL, GIA, IGI·Ships to United States
    Terms not yet verified
    Visit Zales
  32. 42GemsNY91 in stock
    United States·Founded 1988·GCAL, GIA, IGI·Ships to United States
    Terms not yet verified
    Visit GemsNY
  35. 45VRAI64 in stock
    United States·Founded 2014·IGI·Ships to United States
    Terms not yet verified
    Visit VRAI
  37. 47Shane Co47 in stock
    United States·Founded 1971·IGI·Ships to United States
    Terms not yet verified
    Visit Shane Co
  44. 54

    GemTrove

    5 in stock
    AU·IGI
    Terms not yet verified
  45. 55

    Whiteflash

    5 in stock
    US·IGI·Ships to United States
    Terms not yet verified
  46. 56ZCOVA4 in stock
    Malaysia·Founded 2015·IGI·Ships to United States
    Terms not yet verified
    Visit ZCOVA
  50. 60

    Lauren B

    1 in stock
    US·Ships to United States
    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.

49 of the 58 retailers with shipping details ship to United States. 9 do not. 2 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 VVS25,921 · 55rD VS14,912 · 52rD VVS14,199 · 50rE VS14,047 · 51rE VVS24,017 · 51rF VS12,319 · 50rE VVS11,474 · 52rG VS11,472 · 46rD IF1,437 · 44rF VVS21,414 · 46rE VS2994 · 45rD VS2798 · 46rG VVS2767 · 39rD FL728 · 38rE IF600 · 42rF VS2565 · 41rG VS2379 · 37rH VS1301 · 38rH VVS2261 · 29rF VVS1169 · 31rI VS1112 · 23rD SI1106 · 24rF IF82 · 32rG SI176 · 23rE FL63 · 25rF SI161 · 22rE SI158 · 23rG VVS151 · 23rH VS248 · 18rI VS222 · 15rH VVS121 · 3rI VVS217 · 16rJ VVS217 · 12rJ VS116 · 15r

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

  • Radiant: a rectangular brilliant cut that combines the emerald outline with round-style faceting.
  • 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 34 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.