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Carat Hunter · Where to buy diamonds

Where to buy a 3ct lab-grown asscher diamond

Every retailer in our index stocking this size and shape, 57 of them, across 46,260 current listings.

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

The market at this size and shape

Active listings

46,260

Retailers carrying

57

Median confirmed price

HK$5,186

Grade combinations

28

Certificate mix:IGI 39,791 · GIA 4,577 · GCAL 47 · HRD 21

What it actually costs

Half of these diamonds are listed between HK$3,993 and HK$11,131 (as of November 6, 2026).

Lower 10% HK$3,554Median HK$5,186Upper 10% HK$15,903

Middle half listed between HK$3,993 to HK$11,131

Certificated stones with a recently confirmed price only, 7,455 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Cheapest to dearest, median

302%

Cheapest to dearest, median in price

HK$16,412

Stones compared

5,408

Across 5,408 stones of this size and shape carried by more than one retailer, the dearest listing sits 302% above the cheapest for the identical certificated diamond, a typical gap of HK$16,412. 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. 2Rare Carat4,223 in stock
    United States·Founded 2016·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  10. 10NZ Jewellers1,519 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
Show 15 more retailers
  1. 11

    The Perfect Carat

    1,408 in stock
    US
    Terms not yet verified
  2. 12Adiamor1,338 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  3. 13B2C Jewels1,314 in stock
    United States·Founded 2004·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  4. 14Aurelinne1,193 in stock
    United States·Founded 2021·30-day returns·Ships to Hong Kong
    Terms not yet verified
    Visit Aurelinne
  5. 15RockHer1,130 in stock
    United States·Founded 2016·40-day returns·Ships to Hong Kong
    Terms not yet verified
    Visit RockHer
  11. 21Cape Diamonds744 in stock
    South Africa·Founded 2005·7-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  12. 22Yorxs734 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs

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.

14 of the 25 retailers ship to Hong Kong. 11 do not.

Narrow it down by grade

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

E VVS27,378 · 51rE VS15,342 · 48rF VVS24,676 · 49rD VVS24,539 · 49rF VS14,039 · 48rD VVS13,354 · 47rD VS13,346 · 50rD IF2,104 · 41rG VS11,802 · 43rE VS21,434 · 41rE VVS11,406 · 44rG VVS21,374 · 42rD FL1,371 · 36rF VS21,046 · 36rD VS2676 · 37rH VS1466 · 38rG VS2411 · 36rH VVS2381 · 35rF VVS1308 · 37rH VS2216 · 30rE FL142 · 26rG VVS1121 · 27rE IF104 · 32rF IF68 · 29rH VVS137 · 5rG IF37 · 27rI VS134 · 21rI VVS133 · 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

  • Asscher: a square step cut with cropped corners.
  • 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 5,408 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 302%, about HK$16,412.

Can I see retailers for one exact grade?

Yes. Each of the 28 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.