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Carat Hunter · Where to buy diamonds

Where to buy a 3ct lab-grown oval diamond

Every retailer in our index stocking this size and shape, 68 of them, across 451,579 current listings.

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

The market at this size and shape

Active listings

451,579

Retailers carrying

68

Median confirmed price

HK$5,682

Grade combinations

46

Certificate mix:IGI 402,843 · GIA 30,240 · GCAL 7,811 · HRD 59

What it actually costs

Half of these diamonds are listed between HK$4,162 and HK$8,132 (as of November 6, 2026).

Lower 10% HK$3,726Median HK$5,682Upper 10% HK$15,777

Middle half listed between HK$4,162 to HK$8,132

Certificated stones with a recently confirmed price only, 54,635 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.

  4. 4Rare Carat22,601 in stock
    United States·Founded 2016·GCAL, GIA, IGI·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  5. 5Carbon Sparkle22,077 in stock
    United States·GCAL, GIA, IGI·21-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  6. 6NZ Jewellers21,540 in stock
    New Zealand·Founded 2006·GCAL, GIA, IGI·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  8. 8Aurelinne18,181 in stock
    United States·Founded 2021·GCAL, GIA, IGI·Ships to Hong Kong
    Terms not yet verified
    Visit Aurelinne
  9. 9

    The Perfect Carat

    17,849 in stock
    US·GCAL, GIA, IGI
    Terms not yet verified
Show 58 more retailers
  1. 11Adiamor15,589 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
  4. 14B2C Jewels12,560 in stock
    United States·Founded 2004·GCAL, GIA, IGI·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  5. 15RockHer11,951 in stock
    United States·Founded 2016·GIA, IGI·Ships to Hong Kong
    Terms not yet verified
    Visit RockHer
  9. 19Yorxs8,703 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  12. 22Cape Diamonds7,636 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  16. 26GemsNY6,824 in stock
    United States·Founded 1988·GCAL, GIA, IGI·Ships to Hong Kong
    Terms not yet verified
    Visit GemsNY
  29. 39Blue Nile1,894 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to Hong Kong
    Terms not yet verified
    Visit Blue Nile
  30. 40Allurez1,273 in stock
    United States·Founded 2010·GIA, IGI·Ships to Hong Kong
    Terms not yet verified
    Visit Allurez
  33. 43

    GemTrove

    1,156 in stock
    AU·GCAL, GIA, IGI
    Terms not yet verified
  35. 45Jared726 in stock
    United States·Founded 1993·GCAL, GIA, IGI
    Terms not yet verified
    Visit Jared
  38. 48Zales670 in stock
    United States·Founded 1924·GCAL, GIA, IGI
    Terms not yet verified
    Visit Zales
  43. 5325karats118 in stock
    United States·Founded 2008·IGI·60-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, June 15, 2026
    Visit 25karats
  44. 54ZCOVA108 in stock
    Malaysia·Founded 2015·IGI·Ships to Hong Kong
    Terms not yet verified
    Visit ZCOVA
  49. 59

    Whiteflash

    10 in stock
    US·GIA, IGI
    Terms not yet verified
  50. 60VRAI9 in stock
    United States·Founded 2014·IGI
    Terms not yet verified
    Visit VRAI
  51. 61

    Diamond Culture

    8 in stock
    HK·IGI·Ships to Hong Kong
    Terms not yet verified
  52. 62

    Diamovida

    5 in stock
    CA·IGI
    Terms not yet verified
  53. 63

    Distinctive Gem

    4 in stock
    US
    Terms not yet verified
  56. 66

    Good Old Gold

    1 in stock
    US·IGI
    Terms not yet verified
  57. 67

    Lauren B

    1 in stock
    US
    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.

32 of the 60 retailers with shipping details ship to Hong Kong. 28 do not. 8 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.

E VVS275,926 · 61rE VS158,665 · 58rF VVS253,275 · 59rD VVS243,463 · 62rD VS138,800 · 61rF VS134,357 · 58rD VVS126,237 · 55rE VS216,789 · 54rD IF15,600 · 52rD FL13,150 · 43rG VS112,061 · 51rG VVS211,745 · 49rE VVS19,817 · 56rF VS29,653 · 48rD VS27,225 · 48rF VVS14,482 · 49rG VS24,460 · 46rH VS13,953 · 37rH VVS22,065 · 31rE SI11,826 · 41rE IF1,571 · 50rF SI11,456 · 40rG VVS11,089 · 39rH VS2760 · 35rE FL604 · 41rG SI1575 · 34rD SI1505 · 34rF IF387 · 41rI VS1214 · 30rG IF167 · 31rH VVS1106 · 14rH SI173 · 15rJ SI155 · 15rE SI252 · 19rK SI150 · 10rI VVS248 · 24rF SI247 · 20rI VS239 · 23rG SI231 · 21rJ VS130 · 22rJ VVS228 · 19rK SI227 · 9rF FL25 · 25rI SI125 · 15rH SI221 · 19rK VVS215 · 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

  • 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 46 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.