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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 55,590 live listings.

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

The market at this size and shape

Active listings

55,590

Retailers carrying

60

Median active price

$864

Grade combinations

32

Certificate mix:GIA 51,092 · IGI 2,217 · HRD 8 · AGS 2

What it actually costs

Lower 10% $590Median $864Upper 10% $1,295

Middle half sell between $705 to $1,060

Certificated stones with a live price only, 15,688 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

40%

Typical difference

$309

Stones compared

9,177

Across 9,177 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 $309. 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
  9. 19Adiamor995 in stock
    United States·Founded 1999·30-day returns·Ships to United States
    Visit Adiamor
  10. 20Ritani987 in stock
    United States·Founded 1999·30-day returns·Ships to United States
    Visit Ritani
  11. 21RockHer955 in stock
    United States·Founded 2016·40-day returns·Ships to United States
    Visit RockHer

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

13 of the 25 retailers ship to United States. 12 do not.

Narrow it down by grade

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

D VVS14,055 · 53rD VS23,869 · 55rD VS13,861 · 57rD VVS23,753 · 53rE VS22,908 · 53rE VS12,878 · 53rF VS12,659 · 55rF VS22,296 · 53rG VS22,178 · 56rG VS12,024 · 53rE VVS12,002 · 52rF VVS11,880 · 51rF VVS21,869 · 53rE VVS21,806 · 52rH VS11,805 · 55rD IF1,803 · 51rG VVS11,474 · 51rH VVS11,463 · 51rH VS21,452 · 54rH VVS21,438 · 52rG VVS21,357 · 53rI VS1955 · 48rI VS2945 · 44rE IF914 · 45rI VVS1855 · 46rI VVS2693 · 44rF IF651 · 43rH IF639 · 43rG IF414 · 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 9,177 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 40%, about $309.

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.