CaratHunter
Plans

Carat Hunter · Where to buy diamonds

Where to buy a 0.75ct lab-grown cushion diamond

Every retailer in our index stocking this size and shape, 46 of them, across 19,437 live listings.

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

The market at this size and shape

Active listings

19,437

Retailers carrying

46

Median active price

A$559

Grade combinations

24

Certificate mix:IGI 18,497 · GCAL 77 · GIA 71 · HRD 1

What it actually costs

Lower 10% A$249Median A$559Upper 10% A$1,233

Middle half sell between A$369 to A$809

Certificated stones with a live price only, 3,840 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

175%

Typical difference

A$788

Stones compared

2,204

Across 2,204 stones of this size and shape carried by more than one retailer, the dearest listing sits 175% above the cheapest for the identical certificated diamond, a typical gap of A$788. 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

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

2 of the 25 retailers ship to Australia. 23 do not.

Narrow it down by grade

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

D VVS26,337 · 42rD VS12,867 · 39rE VVS22,144 · 38rE VS11,943 · 37rD VVS11,729 · 36rF VS1768 · 34rD VS2484 · 35rE VVS1481 · 35rE VS2479 · 34rD IF382 · 26rF VVS2362 · 37rG VS1332 · 31rF VS2290 · 28rG VVS2212 · 32rG VS2140 · 21rE IF100 · 29rF VVS173 · 28rI VS168 · 20rD FL48 · 13rH VS147 · 18rF IF43 · 22rG VVS130 · 17rH VS224 · 14rH VVS224 · 14r

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

  • Cushion: a softened-corner square or rectangle with a vintage feel.
  • Lab-grown: chemically identical to natural diamonds, typically 60% to 80% less than a comparable natural cohort.

Frequently asked

How much do retailers differ on the same diamond?

Across 2,204 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 175%, about A$788.

Can I see retailers for one exact grade?

Yes. Each of the 24 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 0.75ct Lab Grown Cushion Diamonds | Carat Hunter