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Carat Hunter · Where to buy diamonds

Where to buy a 1.5ct lab-grown heart diamond

Every retailer in our index stocking this size and shape, 64 of them, across 75,799 current listings.

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

The market at this size and shape

Active listings

75,799

Retailers carrying

64

Median confirmed price

SGD 410

Grade combinations

35

Certificate mix:IGI 71,688 · GIA 1,915 · HRD 47 · GCAL 17

What it actually costs

Half of these diamonds are listed between SGD 332 and SGD 691 (as of November 7, 2026).

Lower 10% SGD 300Median SGD 410Upper 10% SGD 2,363

Middle half listed between SGD 332 to SGD 691

Certificated stones with a recently confirmed price only, 7,999 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.

  3. 3Carbon Sparkle3,994 in stock
    United States·GCAL, GIA, HRD, IGI·21-day returns·Ships to Singapore
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  5. 5NZ Jewellers3,911 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
  7. 7

    The Perfect Carat

    3,637 in stock
    US·GCAL, GIA, HRD, IGI
    Terms not yet verified
  8. 8Aurelinne3,398 in stock
    United States·Founded 2021·GCAL, GIA, HRD, IGI·Ships to Singapore
    Terms not yet verified
    Visit Aurelinne
  10. 10B2C Jewels3,220 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 54 more retailers
  1. 11Adiamor3,113 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
  2. 12

    Luvansh

    2,906 in stock
    US
    Terms not yet verified
  10. 20Cape Diamonds1,778 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
  12. 22

    Steven Stone

    1,575 in stock
    UK·GCAL, GIA, IGI
    Terms not yet verified
  16. 26RockHer1,198 in stock
    United States·Founded 2016·GIA, IGI·Ships to Singapore
    Terms not yet verified
    Visit RockHer
  19. 29Yorxs1,036 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  20. 30

    SJ Gems

    808 in stock
    ZA·GIA, IGI
    Terms not yet verified
  21. 31GemsNY782 in stock
    United States·Founded 1988·GIA, IGI·Ships to Singapore
    Terms not yet verified
    Visit GemsNY
  25. 35

    Reeds

    553 in stock
    US·IGI
    Terms not yet verified
  28. 38

    GemTrove

    382 in stock
    AU·GIA, IGI
    Terms not yet verified
  30. 40

    Keyzar

    229 in stock
    US·GIA, IGI
    Terms not yet verified
  32. 42Allurez117 in stock
    United States·Founded 2010·IGI·Ships to Singapore
    Terms not yet verified
    Visit Allurez
  34. 44

    deBebians

    103 in stock
    US·GIA, IGI
    Terms not yet verified
  36. 46Rare Carat85 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
  38. 48

    Liori Diamonds

    71 in stock
    US·GIA, IGI
    Terms not yet verified
  40. 50ZCOVA49 in stock
    Malaysia·Founded 2015·IGI·Ships to Singapore
    Terms not yet verified
    Visit ZCOVA
  41. 5125karats30 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
  42. 52

    Washington Diamond

    30 in stock
    US·GIA
    Terms not yet verified
  45. 55

    USA Jewels

    17 in stock
    US·IGI
    Terms not yet verified
  48. 58Jared13 in stock
    United States·Founded 1993·GIA, IGI
    Terms not yet verified
    Visit Jared
  51. 61Zales11 in stock
    United States·Founded 1924·GIA, IGI
    Terms not yet verified
    Visit Zales
  53. 63

    Diamond Culture

    1 in stock
    HK·IGI
    Terms not yet verified
  54. 64

    SkyGem

    1 in stock
    AU·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.

27 of the 50 retailers with shipping details ship to Singapore. 23 do not. 14 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 VVS215,302 · 53rE VVS211,627 · 52rD VS111,164 · 53rE VS18,179 · 55rD VVS17,133 · 48rF VVS23,600 · 53rE VVS13,516 · 49rF VS12,680 · 47rD VS22,229 · 48rE VS22,156 · 44rD IF1,651 · 50rD FL994 · 35rF VS2966 · 38rG VVS2948 · 41rF VVS1842 · 44rG VS1652 · 40rE IF628 · 46rE SI1233 · 31rD SI1182 · 29rH VS1141 · 27rG VVS1135 · 31rF SI1128 · 22rG VS2114 · 28rE FL112 · 28rF IF106 · 32rH VVS273 · 26rH VVS167 · 27rI VS154 · 17rG SI143 · 20rH VS233 · 18rF FL23 · 21rH SI120 · 17rI SI220 · 16rI VS212 · 12rE SI210 · 10r

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 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 35 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.