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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct lab-grown heart diamond

Every retailer in our index stocking this size and shape, 40 of them, across 15,848 current listings.

Updated October 31, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

15,848

Retailers carrying

40

Median confirmed price

HK$1,475

Grade combinations

22

Certificate mix:IGI 15,239

What it actually costs

Half of these diamonds are listed between HK$1,105 and HK$2,236 (as of October 31, 2026).

Lower 10% HK$871Median HK$1,475Upper 10% HK$3,693

Middle half listed between HK$1,105 to HK$2,236

Certificated stones with a recently confirmed price only, 1,509 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

475%

Typical difference

HK$6,332

Stones compared

1,244

Across 1,244 stones of this size and shape carried by more than one retailer, the dearest listing sits 475% above the cheapest for the identical certificated diamond, a typical gap of HK$6,332. 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.

  4. 4Aurelinne1,013 in stock
    United States·Founded 2021·30-day returns·Ships to Hong Kong
    Terms not yet verified
    Visit Aurelinne
  6. 6B2C Jewels950 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
  7. 7NZ Jewellers930 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
  9. 9

    The Perfect Carat

    790 in stock
    US
    Terms not yet verified
Show 15 more retailers
  2. 12Cape Diamonds545 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
  8. 18Yorxs409 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs

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.

13 of the 25 retailers ship to Hong Kong. 12 do not.

Narrow it down by grade

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

D VVS24,000 · 34rD VS13,594 · 35rD VVS11,720 · 30rE VVS21,621 · 32rE VS11,134 · 28rD VS2799 · 29rE VVS1479 · 31rD FL466 · 18rD IF463 · 28rF VVS2456 · 27rE VS2351 · 26rF VS1287 · 27rG VVS2109 · 21rE IF100 · 21rG VS167 · 24rF VS243 · 19rE FL41 · 18rF VVS137 · 21rG VS229 · 14rH VS124 · 10rH VS211 · 5rF IF10 · 10r

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

  • Heart: a brilliant cut with a cleft and a pointed tip, classic and recognizable.
  • 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 1,244 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 475%, about HK$6,332.

Can I see retailers for one exact grade?

Yes. Each of the 22 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.