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Carat Hunter · Where to buy diamonds

Where to buy a 1.5ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 60 of them, across 137,087 current listings.

Updated November 1, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

137,087

Retailers carrying

60

Median confirmed price

SGD 491

Grade combinations

29

Certificate mix:IGI 132,902 · GCAL 810 · GIA 313 · HRD 9

What it actually costs

Half of these diamonds are listed between SGD 339 and SGD 821 (as of November 1, 2026).

Lower 10% SGD 322Median SGD 491Upper 10% SGD 1,542

Middle half listed between SGD 339 to SGD 821

Certificated stones with a recently confirmed price only, 12,049 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

330%

Typical difference

SGD 1,496

Stones compared

9,682

Across 9,682 stones of this size and shape carried by more than one retailer, the dearest listing sits 330% above the cheapest for the identical certificated diamond, a typical gap of SGD 1,496. That gap is what comparing before you buy avoids.

Every retailer that stocks this spec

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

  1. 1Rare Carat9,435 in stock
    United States·Founded 2016·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  7. 7NZ Jewellers5,327 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
Show 15 more retailers
  2. 12B2C Jewels4,482 in stock
    United States·Founded 2004·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  3. 13Aurelinne4,356 in stock
    United States·Founded 2021·30-day returns·Ships to Singapore
    Terms not yet verified
    Visit Aurelinne
  4. 14Adiamor4,279 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  6. 16

    The Perfect Carat

    3,981 in stock
    US
    Terms not yet verified
  8. 18GemsNY3,150 in stock
    United States·Founded 1988·30-day returns·Ships to Singapore
    Terms not yet verified
    Visit GemsNY
  13. 23Yorxs2,719 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  15. 25Cape Diamonds2,495 in stock
    South Africa·Founded 2005·7-day returns·Ships to Singapore
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds

Stock counts are updated daily. 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.

14 of the 25 retailers ship to Singapore. 11 do not.

Narrow it down by grade

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

E VVS224,784 · 57rD VVS217,707 · 57rE VS116,531 · 54rD VVS112,524 · 55rD VS110,750 · 53rF VVS29,410 · 55rD FL8,137 · 43rE VVS17,724 · 52rD IF7,543 · 48rF VS16,084 · 50rE VS25,491 · 43rD VS22,370 · 48rF VVS11,587 · 50rE IF1,465 · 45rG VVS21,392 · 43rF VS21,337 · 40rG VS1787 · 39rE FL609 · 34rF IF172 · 31rG VS2158 · 32rH VS1149 · 24rG IF103 · 29rG VVS186 · 28rH VVS264 · 18rH VS237 · 10rH VVS129 · 6rI VS219 · 15rI VVS215 · 6rF FL14 · 14r

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?

Across 9,682 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 330%, about SGD 1,496.

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.