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Carat Hunter · Where to buy diamonds

Where to buy a 1.25ct lab-grown heart diamond

Every retailer in our index stocking this size and shape, 57 of them, across 19,810 current listings.

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

The market at this size and shape

Active listings

19,810

Retailers carrying

57

Median confirmed price

SGD 350

Grade combinations

26

Certificate mix:IGI 18,967 · GIA 392 · HRD 29 · GCAL 14

What it actually costs

Half of these diamonds are listed between SGD 282 and SGD 551 (as of November 6, 2026).

Lower 10% SGD 255Median SGD 350Upper 10% SGD 1,459

Middle half listed between SGD 282 to SGD 551

Certificated stones with a recently confirmed price only, 1,703 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 Jewellers1,218 in stock
    New Zealand·Founded 2006·GIA, HRD, IGI·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  2. 2Carbon Sparkle1,209 in stock
    United States·GIA, HRD, IGI·21-day returns·Ships to Singapore
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  4. 4

    The Perfect Carat

    1,104 in stock
    US·GIA, HRD, IGI
    Terms not yet verified
  5. 5Aurelinne1,042 in stock
    United States·Founded 2021·GIA, HRD, IGI·Ships to Singapore
    Terms not yet verified
    Visit Aurelinne
  7. 7B2C Jewels949 in stock
    United States·Founded 2004·GIA, HRD, IGI·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 47 more retailers
  6. 16Cape Diamonds623 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to Singapore
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  13. 23Yorxs272 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  18. 28RockHer140 in stock
    United States·Founded 2016·GIA, IGI·Ships to Singapore
    Terms not yet verified
    Visit RockHer
  19. 29

    GemTrove

    138 in stock
    AU·GIA, IGI
    Terms not yet verified
  20. 30GemsNY115 in stock
    United States·Founded 1988·GIA, IGI·Ships to Singapore
    Terms not yet verified
    Visit GemsNY
  27. 37Rare Carat22 in stock
    United States·Founded 2016·GIA, IGI·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  30. 40Allurez19 in stock
    United States·Founded 2010·Ships to Singapore
    Terms not yet verified
    Visit Allurez
  32. 4225karats14 in stock
    United States·Founded 2008·IGI·60-day returns·Ships to Singapore
    Terms read on the retailer’s own site, June 15, 2026
    Visit 25karats
  36. 46Jared3 in stock
    United States·Founded 1993·GIA
    Terms not yet verified
    Visit Jared
  38. 48Zales3 in stock
    United States·Founded 1924·GIA
    Terms not yet verified
    Visit Zales
  44. 54

    Lauren B

    1 in stock
    US
    Terms not yet verified
  47. 57ZCOVA1 in stock
    Malaysia·Founded 2015·IGI·Ships to Singapore
    Terms not yet verified
    Visit ZCOVA

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.

29 of the 53 retailers with shipping details ship to Singapore. 24 do not. 4 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 VVS24,784 · 48rD VS13,004 · 44rD VVS12,683 · 41rE VVS22,327 · 43rE VS11,945 · 42rE VVS11,362 · 44rF VVS2672 · 40rF VS1551 · 38rE VS2543 · 38rD VS2473 · 35rD IF325 · 35rD FL181 · 28rG VVS2160 · 29rE IF156 · 35rF VVS1125 · 27rF VS2121 · 26rE SI163 · 22rF IF59 · 27rE FL58 · 21rG VS254 · 22rG VS153 · 26rH SI240 · 13rG VVS121 · 20rI VVS217 · 17rD SI113 · 12rG IF10 · 9r

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

  • Heart: a brilliant cut with a cleft and a pointed tip, classic and recognizable.
  • 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 26 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.