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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 15,916 current listings.

Updated November 2, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

15,916

Retailers carrying

40

Median confirmed price

CA$263

Grade combinations

22

Certificate mix:IGI 15,292

What it actually costs

Half of these diamonds are listed between CA$197 and CA$430 (as of November 2, 2026).

Lower 10% CA$157Median CA$263Upper 10% CA$739

Middle half listed between CA$197 to CA$430

Certificated stones with a recently confirmed price only, 1,544 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

422%

Typical difference

CA$1,105

Stones compared

1,239

Across 1,239 stones of this size and shape carried by more than one retailer, the dearest listing sits 422% above the cheapest for the identical certificated diamond, a typical gap of CA$1,105. 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. 4Aurelinne1,006 in stock
    United States·Founded 2021·30-day returns·Ships to Canada
    Terms not yet verified
    Visit Aurelinne
  6. 6NZ Jewellers934 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Canada
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  7. 7B2C Jewels928 in stock
    United States·Founded 2004·30-day returns·Ships to Canada
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  9. 9

    The Perfect Carat

    801 in stock
    US
    Terms not yet verified
Show 15 more retailers
  7. 17Yorxs428 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  14. 24Adiamor214 in stock
    United States·Founded 1999·30-day returns·Ships to Canada
    Terms not yet verified
    Visit Adiamor

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 Canada. 9 do not.

Narrow it down by grade

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

D VVS24,033 · 34rD VS13,652 · 35rD VVS11,707 · 30rE VVS21,652 · 32rE VS11,126 · 28rD VS2778 · 29rE VVS1486 · 31rD FL465 · 18rD IF465 · 28rF VVS2444 · 27rE VS2343 · 26rF VS1283 · 27rG VVS2109 · 21rE IF104 · 21rG VS167 · 24rF VS243 · 19rE FL42 · 18rF VVS137 · 21rG VS229 · 14rH VS123 · 9rH 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 1,239 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 422%, about CA$1,105.

Can I see retailers for one exact grade?

Yes. Each of the 22 color 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.