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Carat Hunter · Where to buy diamonds

Where to buy a 1.25ct lab-grown radiant diamond

Every retailer in our index stocking this size and shape, 59 of them, across 33,414 current listings.

Updated October 29, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

33,414

Retailers carrying

59

Median confirmed price

CA$682

Grade combinations

28

Certificate mix:IGI 30,579 · GIA 1,631 · GCAL 479 · HRD 3

What it actually costs

Half of these diamonds are listed between CA$339 and CA$987 (as of October 29, 2026).

Lower 10% CA$277Median CA$682Upper 10% CA$1,559

Middle half listed between CA$339 to CA$987

Certificated stones with a recently confirmed price only, 4,345 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

431%

Typical difference

CA$1,547

Stones compared

2,450

Across 2,450 stones of this size and shape carried by more than one retailer, the dearest listing sits 431% above the cheapest for the identical certificated diamond, a typical gap of CA$1,547. 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.

  1. 1NZ Jewellers1,905 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
  2. 2Rare Carat1,860 in stock
    United States·Founded 2016·30-day returns·Ships to Canada
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  5. 5

    The Perfect Carat

    1,660 in stock
    US
    Terms not yet verified
  8. 8Aurelinne1,401 in stock
    United States·Founded 2021·30-day returns·Ships to Canada
    Terms not yet verified
    Visit Aurelinne
Show 15 more retailers
  1. 11B2C Jewels1,243 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
  2. 12Adiamor1,216 in stock
    United States·Founded 1999·30-day returns·Ships to Canada
    Terms not yet verified
    Visit Adiamor
  11. 21Yorxs677 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.

18 of the 25 retailers ship to Canada. 7 do not.

Narrow it down by grade

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

D VVS24,828 · 53rD VVS14,267 · 50rD VS13,654 · 51rE VS13,295 · 49rE VVS23,242 · 51rF VS12,306 · 50rG VS11,795 · 46rF VVS21,394 · 46rE VVS11,385 · 51rD IF1,374 · 44rE VS2930 · 45rG VVS2862 · 41rD VS2784 · 46rD FL679 · 38rF VS2562 · 40rE IF555 · 41rG VS2377 · 37rH VS1297 · 39rH VVS2250 · 30rF VVS1170 · 32rI VS1102 · 23rF IF79 · 31rE FL63 · 26rG VVS157 · 26rH VS248 · 18rH VVS121 · 3rI VS220 · 15rI VVS217 · 16r

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

  • Radiant: a rectangular brilliant cut that combines the emerald outline with round-style faceting.
  • 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 2,450 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 431%, about CA$1,547.

Can I see retailers for one exact grade?

Yes. Each of the 28 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.