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Carat Hunter · Where to buy diamonds

Where to buy a 1ct lab-grown oval diamond

Every retailer in our index stocking this size and shape, 66 of them, across 254,932 current listings.

Updated November 6, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

254,932

Retailers carrying

66

Median confirmed price

£252

Grade combinations

51

Certificate mix:IGI 242,121 · GCAL 3,282 · GIA 3,020 · HRD 24

What it actually costs

Half of these diamonds are listed between £155 and £392 (as of November 6, 2026).

Lower 10% £137Median £252Upper 10% £681

Middle half listed between £155 to £392

Certificated stones with a recently confirmed price only, 23,453 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

As of November 6, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 20% 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.

  2. 2Carbon Sparkle14,266 in stock
    United States·GCAL, GIA, HRD, IGI·21-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  3. 3NZ Jewellers13,908 in stock
    New Zealand·Founded 2006·GCAL, GIA, HRD, IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  5. 5Rare Carat12,315 in stock
    United States·Founded 2016·GCAL, GIA, HRD, IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  6. 6Aurelinne11,992 in stock
    United States·Founded 2021·GCAL, GIA, HRD, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit Aurelinne
  7. 7

    The Perfect Carat

    11,748 in stock
    US·GCAL, GIA, HRD, IGI
    Terms not yet verified
Show 56 more retailers
  2. 12Adiamor9,557 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
  3. 13B2C Jewels8,420 in stock
    United States·Founded 2004·GCAL, GIA, IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  8. 18Moon Ocean6,086 in stock
    United Kingdom·Founded 2022·GCAL, GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit Moon Ocean
  9. 19Cape Diamonds6,009 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  12. 22Yorxs5,432 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  20. 30GemsNY2,277 in stock
    United States·Founded 1988·GCAL, GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit GemsNY
  21. 31

    GemTrove

    2,034 in stock
    AU·GCAL, GIA, IGI
    Terms not yet verified
  25. 35Blue Nile1,229 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit Blue Nile
  29. 39Jared948 in stock
    United States·Founded 1993·GCAL, GIA, IGI
    Terms not yet verified
    Visit Jared
  31. 41Zales875 in stock
    United States·Founded 1924·GCAL, GIA, IGI
    Terms not yet verified
    Visit Zales
  32. 42RockHer807 in stock
    United States·Founded 2016·GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit RockHer
  35. 45Allurez594 in stock
    United States·Founded 2010·GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit Allurez
  44. 5425karats63 in stock
    United States·Founded 2008·IGI·60-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, June 15, 2026
    Visit 25karats
  46. 56ZCOVA41 in stock
    Malaysia·Founded 2015·IGI·Ships to United Kingdom
    Terms not yet verified
    Visit ZCOVA
  47. 57VRAI25 in stock
    United States·Founded 2014·Ships to United Kingdom
    Terms not yet verified
    Visit VRAI
  52. 62

    Whiteflash

    4 in stock
    US·IGI
    Terms not yet verified
  54. 64

    Lauren B

    2 in stock
    US·IGI
    Terms not yet verified
  56. 66

    Diamovida

    1 in stock
    CA·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.

38 of the 61 retailers with shipping details ship to United Kingdom. 23 do not. 5 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 VVS257,637 · 62rD VS137,886 · 57rD VVS137,809 · 57rE VVS220,074 · 56rE VS115,636 · 57rD IF15,570 · 54rD FL12,911 · 41rE VVS111,710 · 53rD VS29,026 · 48rE VS26,897 · 47rF VVS25,952 · 52rF VS14,768 · 49rE IF3,475 · 42rF VVS12,461 · 50rG VS12,276 · 42rF VS21,770 · 42rG VVS21,738 · 42rD SI11,176 · 29rE FL894 · 35rG VS2682 · 36rE SI1663 · 32rI SI1643 · 13rF IF546 · 40rH VS1422 · 30rG VVS1404 · 39rF SI1283 · 26rH VVS2258 · 34rH VS2184 · 21rG SI1166 · 25rH SI198 · 18rE SI297 · 24rK VS192 · 16rG IF86 · 33rD SI281 · 22rJ VS180 · 22rF FL74 · 26rI VS172 · 22rH VVS155 · 22rK VVS239 · 18rK SI129 · 10rJ SI225 · 18rG SI222 · 13rG FL21 · 21rK SI221 · 9rI VVS220 · 13rK VS218 · 8rH SI215 · 11rF SI214 · 11rI SI214 · 9rJ VVS114 · 12rJ VS211 · 6r

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

  • Oval: an elongated brilliant cut that looks larger face-up than its carat weight.
  • 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 6, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 20% 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 51 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.