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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, 63 of them, across 65,124 live listings.

Updated September 22, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

65,124

Retailers carrying

63

Median active price

NZ$1,468

Grade combinations

32

Certificate mix:GIA 59,896 · IGI 2,855 · HRD 12 · AGS 1

What it actually costs

Lower 10% NZ$948Median NZ$1,468Upper 10% NZ$2,269

Middle half sell between NZ$1,163 to NZ$1,848

Certificated stones with a live price only, 16,582 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

70%

Typical difference

NZ$895

Stones compared

9,642

Across 9,642 stones of this size and shape carried by more than one retailer, the dearest listing sits 70% above the cheapest for the identical certificated diamond, a typical gap of NZ$895. 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.

  10. 10

    MOH London

    1,902 in stock
    United Kingdom
Show 15 more retailers
  7. 17

    GemTrove

    1,529 in stock
    AU

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

Narrow it down by grade

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

D VVS14,714 · 55rD VS24,621 · 57rD VS14,534 · 59rD VVS24,306 · 56rE VS23,433 · 56rE VS13,391 · 54rF VS13,099 · 58rF VS22,779 · 56rG VS22,558 · 58rG VS12,383 · 55rE VVS12,328 · 55rF VVS12,228 · 54rH VS12,162 · 57rF VVS22,156 · 54rD IF2,100 · 54rE VVS22,085 · 55rH VVS11,703 · 54rH VS21,700 · 56rH VVS21,683 · 54rG VVS11,659 · 53rG VVS21,519 · 54rI VS11,148 · 50rI VS21,133 · 46rE IF1,083 · 48rI VVS11,006 · 48rI VVS2830 · 46rH IF758 · 48rF IF739 · 44rG IF495 · 41rI IF421 · 45rD FL280 · 33rE FL41 · 20r

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 9,642 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 70%, about NZ$895.

Can I see retailers for one exact grade?

Yes. Each of the 32 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?

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.

Where to Buy 0.5ct Natural Marquise Diamonds | Carat Hunter