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Carat Hunter · Where to buy diamonds

Where to buy a 1ct lab-grown round diamond

Every retailer in our index stocking this size and shape, 68 of them, across 942,025 current listings.

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

The market at this size and shape

Active listings

942,025

Retailers carrying

68

Median confirmed price

£199

Grade combinations

32

Certificate mix:IGI 900,672 · GIA 6,210 · GCAL 5,024 · HRD 230 · AGS 9

What it actually costs

Half of these diamonds are listed between £137 and £281 (as of November 1, 2026).

Lower 10% £122Median £199Upper 10% £425

Middle half listed between £137 to £281

Certificated stones with a recently confirmed price only, 81,945 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

299%

Typical difference

£564

Stones compared

63,672

Across 63,672 stones of this size and shape carried by more than one retailer, the dearest listing sits 299% above the cheapest for the identical certificated diamond, a typical gap of £564. 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.

  2. 2Aurelinne60,612 in stock
    United States·Founded 2021·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Aurelinne
  5. 5NZ Jewellers51,759 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
  7. 7

    The Perfect Carat

    45,544 in stock
    US
    Terms not yet verified
  9. 9B2C Jewels43,232 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 Ocean30,453 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Moon Ocean
  4. 14Yorxs28,313 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  5. 15Adiamor27,656 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  7. 17Cape Diamonds25,189 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. 20Rare Carat20,434 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

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.

16 of the 25 retailers ship to United Kingdom. 9 do not.

Narrow it down by grade

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

D VVS2280,652 · 60rD VS1146,268 · 61rD VVS1132,088 · 58rE VVS276,544 · 58rE VS155,395 · 54rE VVS142,249 · 56rD VS233,492 · 51rD IF28,257 · 55rF VVS225,756 · 50rE VS225,032 · 50rD FL24,116 · 43rF VS120,221 · 48rF VVS19,523 · 46rE IF8,857 · 47rG VS16,889 · 41rG VVS26,819 · 47rF VS25,615 · 45rE FL2,538 · 34rG VVS12,112 · 42rF IF2,079 · 41rG VS22,057 · 38rH VVS21,788 · 35rH VS11,704 · 36rG IF502 · 26rI VS1363 · 27rH VVS1275 · 25rH VS2223 · 26rI VVS2214 · 22rF FL208 · 26rI VS2106 · 21rH IF55 · 25rI VVS112 · 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

  • 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 63,672 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 299%, about £564.

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.