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Carat Hunter · Where to buy diamonds

Where to buy a 1.5ct lab-grown round diamond

Every retailer in our index stocking this size and shape, 71 of them, across 754,966 current listings.

Updated October 29, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

754,966

Retailers carrying

71

Median confirmed price

£244

Grade combinations

32

Certificate mix:IGI 728,606 · GIA 4,676 · GCAL 4,134 · HRD 8

What it actually costs

Half of these diamonds are listed between £181 and £397 (as of October 29, 2026).

Lower 10% £166Median £244Upper 10% £743

Middle half listed between £181 to £397

Certificated stones with a recently confirmed price only, 68,612 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

317%

Typical difference

£710

Stones compared

54,369

Across 54,369 stones of this size and shape carried by more than one retailer, the dearest listing sits 317% above the cheapest for the identical certificated diamond, a typical gap of £710. 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.

  3. 3NZ Jewellers40,621 in stock
    New Zealand·Founded 2006·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  4. 4Aurelinne40,102 in stock
    United States·Founded 2021·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Aurelinne
  7. 7

    The Perfect Carat

    32,256 in stock
    US
    Terms not yet verified
  8. 8Brilliance31,759 in stock
    United States·Founded 2002·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Brilliance
  10. 10B2C Jewels29,537 in stock
    United States·Founded 2004·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 15 more retailers
  3. 13Moon Ocean26,427 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Moon Ocean
  4. 14Adiamor25,617 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  5. 15Rare Carat22,793 in stock
    United States·Founded 2016·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  6. 16Yorxs22,118 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  7. 17Cape Diamonds21,068 in stock
    South Africa·Founded 2005·7-day returns·Ships to United Kingdom
    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.

17 of the 25 retailers ship to United Kingdom. 8 do not.

Narrow it down by grade

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

D VVS2147,292 · 59rE VVS2108,664 · 58rD VS183,010 · 55rD VVS173,926 · 58rE VS167,886 · 55rF VVS238,223 · 59rE VVS135,977 · 56rF VS130,926 · 55rE VS223,969 · 49rD VS223,325 · 48rF VVS118,547 · 53rD IF18,524 · 54rD FL14,936 · 42rG VS113,255 · 48rG VVS212,373 · 48rF VS211,266 · 47rG VVS16,269 · 43rG VS25,051 · 42rE IF4,257 · 47rI VS13,812 · 34rH VS12,594 · 33rH VVS22,522 · 35rE FL1,787 · 37rI VS21,697 · 29rI VVS21,312 · 26rH VS21,119 · 35rF IF1,085 · 39rH VVS1564 · 34rG IF447 · 33rF FL222 · 29rI VVS188 · 21rH IF33 · 19r

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

  • Round: the most common cut, with the highest light return per 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 54,369 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 317%, about £710.

Can I see retailers for one exact grade?

Yes. Each of the 32 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.