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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 738,293 current listings.

Updated November 4, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

738,293

Retailers carrying

71

Median confirmed price

£258

Grade combinations

32

Certificate mix:IGI 707,780 · GIA 4,685 · GCAL 4,538 · HRD 8

What it actually costs

Half of these diamonds are listed between £181 and £401 (as of November 4, 2026).

Lower 10% £165Median £258Upper 10% £720

Middle half listed between £181 to £401

Certificated stones with a recently confirmed price only, 67,592 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

320%

Typical difference

£710

Stones compared

53,902

Across 53,902 stones of this size and shape carried by more than one retailer, the dearest listing sits 320% 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 Jewellers40,333 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
  6. 6Aurelinne37,933 in stock
    United States·Founded 2021·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Aurelinne
  7. 7

    The Perfect Carat

    33,149 in stock
    US
    Terms not yet verified
  8. 8Brilliance30,514 in stock
    United States·Founded 2002·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Brilliance
  9. 9B2C Jewels29,894 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
  2. 12Adiamor25,134 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  4. 14Rare Carat22,003 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. 16Yorxs21,089 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  9. 19Cape Diamonds18,332 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
  10. 20Moon Ocean18,255 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Moon Ocean

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 VVS2146,355 · 59rE VVS2103,772 · 59rD VS180,605 · 55rD VVS173,320 · 58rE VS165,733 · 56rF VVS236,175 · 60rE VVS135,820 · 56rF VS129,919 · 54rE VS222,615 · 50rD VS222,606 · 48rD IF19,144 · 55rF VVS118,731 · 53rD FL15,493 · 43rG VS112,651 · 48rG VVS211,285 · 49rF VS211,077 · 48rG VVS16,410 · 43rG VS24,976 · 41rE IF4,430 · 45rI VS13,772 · 35rH VS12,556 · 33rH VVS22,442 · 35rE FL1,847 · 37rI VS21,673 · 27rI VVS21,300 · 26rH VS21,118 · 34rF IF1,100 · 39rH VVS1545 · 34rG IF467 · 34rF FL232 · 28rI VVS185 · 21rH IF31 · 17r

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 53,902 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 320%, 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.