CaratHunter
Plans

Carat Hunter · Where to buy diamonds

Where to buy a 3ct natural marquise diamond

Every retailer in our index stocking this size and shape, 59 of them, across 1,676 live listings.

Updated September 21, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

1,676

Retailers carrying

59

Median active price

£26,639

Grade combinations

27

Certificate mix:GIA 1,349 · IGI 169 · HRD 28

What it actually costs

Lower 10% £12,378Median £26,639Upper 10% £44,334

Middle half sell between £16,700 to £35,591

Certificated stones with a live price only, 654 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

53%

Typical difference

£11,573

Stones compared

472

Across 472 stones of this size and shape carried by more than one retailer, the dearest listing sits 53% above the cheapest for the identical certificated diamond, a typical gap of £11,573. 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.

  6. 6

    MOH London

    67 in stock
    United Kingdom
Show 15 more retailers

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

7 of the 25 retailers ship to United Kingdom. 18 do not.

Narrow it down by grade

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

D VS1122 · 41rD VS2105 · 40rH VS296 · 33rI VS196 · 27rE VS196 · 44rI VS295 · 26rF VS293 · 39rI VVS189 · 34rE VS275 · 37rH VVS173 · 39rG VVS171 · 36rG VS269 · 33rI VVS265 · 30rD FL56 · 26rD VVS156 · 33rD IF49 · 23rF VVS148 · 27rF VS147 · 22rG VS144 · 25rF IF44 · 30rH IF35 · 17rH VS134 · 18rG IF23 · 21rE IF22 · 14rF VVS221 · 15rH VVS213 · 6rD VVS210 · 10r

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 472 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 53%, about £11,573.

Can I see retailers for one exact grade?

Yes. Each of the 27 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 3ct Natural Marquise Diamonds | Carat Hunter