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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct natural marquise diamond

Every retailer in our index stocking this size and shape, 60 of them, across 55,543 live listings.

Updated September 14, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

55,543

Retailers carrying

60

Median active price

CA$1,172

Grade combinations

32

Certificate mix:GIA 51,054 · IGI 2,218 · HRD 8 · AGS 2

What it actually costs

Lower 10% CA$797Median CA$1,172Upper 10% CA$1,750

Middle half sell between CA$954 to CA$1,432

Certificated stones with a live price only, 15,687 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

40%

Typical difference

CA$418

Stones compared

9,171

Across 9,171 stones of this size and shape carried by more than one retailer, the dearest listing sits 40% above the cheapest for the identical certificated diamond, a typical gap of CA$418. 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.

Show 15 more retailers
  10. 20Ritani983 in stock
    United States·Founded 1999·30-day returns·Ships to Canada
    Visit Ritani

Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified September 2, 2026.

5 of the 25 retailers ship to Canada. 20 do not.

Narrow it down by grade

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

D VVS14,048 · 53rD VS23,867 · 55rD VS13,859 · 57rD VVS23,747 · 53rE VS22,902 · 53rE VS12,876 · 53rF VS12,651 · 55rF VS22,294 · 53rG VS22,178 · 56rG VS12,022 · 53rE VVS12,001 · 52rF VVS11,877 · 51rF VVS21,867 · 53rH VS11,807 · 55rE VVS21,806 · 52rD IF1,801 · 51rG VVS11,474 · 51rH VVS11,461 · 51rH VS21,449 · 54rH VVS21,437 · 52rG VVS21,358 · 53rI VS1955 · 48rI VS2947 · 45rE IF914 · 45rI VVS1855 · 46rI VVS2693 · 44rF IF651 · 43rH IF639 · 43rG IF413 · 40rI IF359 · 42rD FL249 · 30rE FL37 · 18r

Stones at this spec now

Live examples carried by more than one retailer, so the comparison is real. Prices shown in USD.

What this spec means

  • Marquise: a pointed-end ellipse that faces up large for its carat.
  • Natural: mined diamonds with the certification, provenance and resale profile traditional buyers expect.

Frequently asked

How much do retailers differ on the same diamond?

Across 9,171 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 40%, about CA$418.

Can I see retailers for one exact grade?

Yes. Each of the 32 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?

Live listings refresh daily. 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.